com.twilio.voice

Class Voice

java.lang.Object

com.twilio.voice.Voice

public abstract class Voice
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	Voice.RegistrationChannel

Method Summary

Modifier and Type	Method and Description
static Call	connect(android.content.Context context, ConnectOptions connectOptions, Call.Listener listener) Creates and returns a new Call.
static Call	connect(android.content.Context context, String accessToken, Call.Listener listener) Creates and returns a new Call.
static void	enableInsights(boolean enable) Specify reporting statistics to Insights.
static AudioDevice	getAudioDevice() Returns the AudioDevice.
static String	getEdge() Returns the edge specified by edge.
static LogLevel	getLogLevel() Returns the logging level for messages logged by the Voice SDK.
static LogLevel	getModuleLogLevel(LogModule module) Returns the logging level for messages logged by the specified LogModule.
static String	getRegion() Deprecated. As of release 5.3.0, use getEdge() instead.
static String	getVersion() Returns the version of the Voice SDK.
static boolean	handleMessage(android.content.Context context, android.os.Bundle data, MessageListener listener) Handle messages from GCM.
static boolean	handleMessage(android.content.Context context, Map<String,String> data, MessageListener listener) Handle messages from FCM.
static boolean	isInsightsEnabled() Returns if reporting statistics to Insights is enabled.
static void	register(String accessToken, Voice.RegistrationChannel registrationChannel, String registrationToken, RegistrationListener listener) Register for incoming call messages.
static void	setAudioDevice(AudioDevice audioDevice) Sets the custom audio device.
static void	setEdge(String edge) Sets the edge (Twilio data center) for the SDK.
static void	setLogLevel(LogLevel level) Sets the logging level for messages logged by the Voice SDK.
static void	setModuleLogLevel(LogModule module, LogLevel level) Sets the logging level for messages logged by a specific module.
static void	setRegion(String region) Deprecated. As of release 5.3.0, use setEdge(String) instead.
static void	unregister(String accessToken, Voice.RegistrationChannel registrationChannel, String registrationToken, UnregistrationListener listener) Unregister from receiving further incoming call messages.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

register

public static void register(String accessToken,
                            Voice.RegistrationChannel registrationChannel,
                            String registrationToken,
                            RegistrationListener listener)

Register for incoming call messages. A successful registration will ensure that push notifications will arrive via the GCM or FCM service for the lifetime of the registration device token provided by the GCM or FCM service instance. When registration is successful, RegistrationListener.onRegistered(...) callback is raised. Once successfully registered, the registered binding has a time-to-live(TTL) of 1 year. If the registered binding is inactive for 1 year, it is deleted and push notifications to the registered identity will not succeed. However, whenever the registered binding is used to reach the registered identity, the TTL is reset to 1 year.

If registration fails, RegistrationListener.onError(...) callback is raised with RegistrationException. RegistrationException.getMessage(...) provides the root cause of the failure.

Registration Exception	Error Code	Description
VoiceException.EXCEPTION_INVALID_ACCESS_TOKEN	20101	Twilio was unable to validate your Access Token
VoiceException.EXCEPTION_INVALID_ACCESS_TOKEN_HEADER	20102	Invalid Access Token header
VoiceException.EXCEPTION_INVALID_ISSUER_SUBJECT	20103	Invalid Access Token issuer or subject
VoiceException.EXCEPTION_INVALID_ACCESS_TOKEN_EXPIRY	20104	Access Token has expired or expiration date is invalid
VoiceException.EXCEPTION_INVALID_ACCESS_TOKEN_NOT_VALID_YET	20105	Access Token not yet valid
VoiceException.EXCEPTION_INVALID_ACCESS_TOKEN_GRANT	20106	Invalid Access Token grants
VoiceException.EXCEPTION_INVALID_TTL	20157	Expiration Time in the Access Token Exceeds Maximum Time Allowed
VoiceException.EXCEPTION_INVALID_TOKEN	20403	Forbidden. The account lacks permission to access the Twilio API
VoiceException.EXCEPTION_ACCESS_TOKEN_REJECTED	51007	Token authentication is rejected by authentication service
RegistrationException.EXCEPTION_REGISTRATION_ERROR	31301	Registration failed. Look at RegistrationException.getMessage(...) for details
VoiceException.EXCEPTION_BAD_REQUEST	31400	Bad Request. The request could not be understood due to malformed syntax
VoiceException.EXCEPTION_FORBIDDEN	31403	Forbidden. The server understood the request, but is refusing to fulfill it
VoiceException.EXCEPTION_NOT_FOUND	31404	Not Found. The server has not found anything matching the request
VoiceException.EXCEPTION_REQUEST_TIMEOUT	31408	Request Timeout. A request timeout occurred
RegistrationException.EXCEPTION_CONFLICT	31409	Conflict. The request could not be processed because of a conflict in the current state of the resource. Another request may be in progress
RegistrationException.EXCEPTION_UPGRADE_REQUIRED	31426	Upgrade Required. The client should switch to a different protocol
RegistrationException.EXCEPTION_TOO_MANY_REQUEST	31429	Too Many Requests. Too many requests were sent in a given amount of time
VoiceException.EXCEPTION_INTERNAL_SERVER_ERROR	31500	Internal Server Error. The server could not fulfill the request due to some unexpected condition
VoiceException.EXCEPTION_BAD_GATEWAY	31502	Bad Gateway. The server is acting as a gateway or proxy, and received an invalid response from a downstream server while attempting to fulfill the request
VoiceException.EXCEPTION_SERVICE_UNAVAILABLE	31503	Service Unavailable. The server is currently unable to handle the request due to a temporary overloading or maintenance of the server
VoiceException.EXCEPTION_GATEWAY_TIMEOUT	31504	Gateway Timeout. The server, while acting as a gateway or proxy, did not receive a timely response from an upstream server

The identity provided in the accessToken may only contain alpha-numeric and underscore characters. Other characters, including spaces, will result in undefined behavior.

Insights :

Group Name	Event Name	Description	Since version
registration	registration	Registration is successful	3.0.0-preview4
registration	registration-error	Registration failed	3.0.0-preview4

The maximum number of characters for the identity provided in the token is 121. The identity may only contain alpha-numeric and underscore characters. Other characters, including spaces, or exceeding the maximum number of characters, will result in not being able to place or receive calls.

Parameters:

accessToken - An access token.

registrationChannel - An enumeration of registration channels.

registrationToken - A GCM or FCM registration token.

listener - A listener that receives registration request status.

Usage example:

 final String registrationToken = FirebaseInstanceId.getInstance().getToken();
 if (registrationToken != null) {
     Voice.register(accessToken, Voice.RegistrationChannel.FCM, registrationToken, registrationListener);
 }
 

unregister

public static void unregister(String accessToken,
                              Voice.RegistrationChannel registrationChannel,
                              String registrationToken,
                              UnregistrationListener listener)

Unregister from receiving further incoming call messages. When unregistration is successful, UnregistrationListener.onUnregistered(...) callback is raised.

If unregistration fails, UnregistrationListener.onError(...) callback is raised with RegistrationException. RegistrationException.getMessage(...) provides the root cause of the failure.

Registration Exception	Error Code	Description
VoiceException.EXCEPTION_INVALID_ACCESS_TOKEN	20101	Twilio was unable to validate your Access Token
VoiceException.EXCEPTION_INVALID_ACCESS_TOKEN_HEADER	20102	Invalid Access Token header
VoiceException.EXCEPTION_INVALID_ISSUER_SUBJECT	20103	Invalid Access Token issuer or subject
VoiceException.EXCEPTION_INVALID_ACCESS_TOKEN_EXPIRY	20104	Access Token has expired or expiration date is invalid
VoiceException.EXCEPTION_INVALID_ACCESS_TOKEN_NOT_VALID_YET	20105	Access Token not yet valid
VoiceException.EXCEPTION_INVALID_ACCESS_TOKEN_GRANT	20106	Invalid Access Token grants
VoiceException.EXCEPTION_INVALID_TTL	20157	Expiration Time in the Access Token Exceeds Maximum Time Allowed
VoiceException.EXCEPTION_INVALID_TOKEN	20403	Forbidden. The account lacks permission to access the Twilio API
VoiceException.EXCEPTION_ACCESS_TOKEN_REJECTED	51007	Token authentication is rejected by authentication service
RegistrationException.EXCEPTION_REGISTRATION_ERROR	31301	Registration failed. Look at RegistrationException.getMessage(...) for details
VoiceException.EXCEPTION_BAD_REQUEST	31400	Bad Request. The request could not be understood due to malformed syntax
VoiceException.EXCEPTION_FORBIDDEN	31403	Forbidden. The server understood the request, but is refusing to fulfill it
VoiceException.EXCEPTION_NOT_FOUND	31404	Not Found. The server has not found anything matching the request
VoiceException.EXCEPTION_REQUEST_TIMEOUT	31408	Request Timeout. A request timeout occurred
RegistrationException.EXCEPTION_CONFLICT	31409	Conflict. The request could not be processed because of a conflict in the current state of the resource. Another request may be in progress
RegistrationException.EXCEPTION_UPGRADE_REQUIRED	31426	Upgrade Required. The client should switch to a different protocol
RegistrationException.EXCEPTION_TOO_MANY_REQUEST	31429	Too Many Requests. Too many requests were sent in a given amount of time
VoiceException.EXCEPTION_INTERNAL_SERVER_ERROR	31500	Internal Server Error. The server could not fulfill the request due to some unexpected condition
VoiceException.EXCEPTION_BAD_GATEWAY	31502	Bad Gateway. The server is acting as a gateway or proxy, and received an invalid response from a downstream server while attempting to fulfill the request
VoiceException.EXCEPTION_SERVICE_UNAVAILABLE	31503	Service Unavailable. The server is currently unable to handle the request due to a temporary overloading or maintenance of the server
VoiceException.EXCEPTION_GATEWAY_TIMEOUT	31504	Gateway Timeout. The server, while acting as a gateway or proxy, did not receive a timely response from an upstream server

The identity provided in the accessToken may only contain alpha-numeric and underscore characters. Other characters, including spaces, will result in undefined behavior.

Insights :

Group Name	Event Name	Description	Since version
registration	unregistration	Unregistration is successful	3.0.0-preview4
registration	unregistration-error	Unregistration failed	3.0.0-preview4

The maximum number of characters for the identity provided in the token is 121. The identity may only contain alpha-numeric and underscore characters. Other characters, including spaces, or exceeding the maximum number of characters, will result in not being able to place or receive calls.

Parameters:

accessToken - An access token.

registrationChannel - An enumeration of registration channels.

registrationToken - An FCM or GCM device token.

listener - A listener that receives unregistration request status.

Usage example:

 Voice.unregister(accessToken, Voice.RegistrationChannel.FCM, registrationToken, unregistrationListener);
 

connect

public static Call connect(android.content.Context context,
                           ConnectOptions connectOptions,
                           Call.Listener listener)

Creates and returns a new Call. A SecurityException will be thrown if RECORD_AUDIO is not granted.

Call.Listener receives the state of the Call.

Callback Name	Description	Since version
Call.Listener.onConnectFailure(Call, CallException)	The call failed to connect. CallException provides details of the root cause.	3.0.0-preview1
Call.Listener.onRinging(Call)	Emitted once before the Call.Listener.onConnected(Call) callback when the callee is being alerted of a Call.	3.0.0-preview2
Call.Listener.onConnected(Call)	The call has connected.	3.0.0-preview1
Call.Listener.onDisconnected(Call, CallException)	The call was disconnected. If the call ends due to an error the `CallException` is non-null. If the call ends normally `CallException` is null.	3.0.0-preview1

If connect fails, Call.Listener.onConnectFailure(Call, CallException) callback is raised with CallException. VoiceException.getMessage() and VoiceException.getExplanation() provide details of the failure. If Call.disconnect() is called while attempting to connect, the Call.Listener.onDisconnected(Call, CallException) callback will be raised with no error.

If connect(Context, ConnectOptions, Call.Listener) fails due to an authentication error, the SDK receives one of the following errors.

Authentication Exception	Error Code	Description
VoiceException.EXCEPTION_INVALID_ACCESS_TOKEN	20101	Twilio was unable to validate your Access Token
VoiceException.EXCEPTION_INVALID_ACCESS_TOKEN_HEADER	20102	Invalid Access Token header
VoiceException.EXCEPTION_INVALID_ISSUER_SUBJECT	20103	Invalid Access Token issuer or subject
VoiceException.EXCEPTION_INVALID_ACCESS_TOKEN_EXPIRY	20104	Access Token has expired or expiration date is invalid
VoiceException.EXCEPTION_INVALID_ACCESS_TOKEN_NOT_VALID_YET	20105	Access Token not yet valid
VoiceException.EXCEPTION_INVALID_ACCESS_TOKEN_GRANT	20106	Invalid Access Token grants
VoiceException.EXCEPTION_AUTH_FAILURE	20151	Twilio failed to authenticate the client
VoiceException.EXCEPTION_INVALID_TTL	20157	Expiration Time in the Access Token Exceeds Maximum Time Allowed
VoiceException.EXCEPTION_INVALID_TOKEN	20403	Forbidden. The account lacks permission to access the Twilio API
CallException.EXCEPTION_INVALID_APPLICATION_SID	21218	Invalid ApplicationSid

If connect(Context, ConnectOptions, Call.Listener) fails due to any other reasons, the SDK receives one of the following errors.

Call Exception	Error Code	Description
CallException.EXCEPTION_CONNECTION_ERROR	31005	Connection error
CallException.EXCEPTION_CALL_CANCELLED	31008	Call Cancelled
CallException.EXCEPTION_TRANSPORT_ERROR	31009	Transport error
CallException.EXCEPTION_MALFORMED_REQUEST	31100	Malformed request
CallException.EXCEPTION_AUTHORIZATION_ERROR	31201	Authorization error
VoiceException.EXCEPTION_BAD_REQUEST	31400	Bad Request
VoiceException.EXCEPTION_FORBIDDEN	31403	Forbidden
VoiceException.EXCEPTION_NOT_FOUND	31404	Not Found
VoiceException.EXCEPTION_REQUEST_TIMEOUT	31408	Request Timeout
CallException.EXCEPTION_TEMPORARILY_UNAVAILABLE_ERROR	31480	Temporarily Unavailable
CallException.EXCEPTION_CALL_OR_TRANSACTION_DOES_NOT_EXIST_ERROR	31481	Call/Transaction Does Not Exist
CallException.EXCEPTION_ADDRESS_INCOMPLETE_ERROR	31484	Address Incomplete
CallException.EXCEPTION_BUSY_HERE_ERROR	31486	Busy Here
CallException.EXCEPTION_REQUEST_TERMINATED_ERROR	31487	Request Terminated
VoiceException.EXCEPTION_INTERNAL_SERVER_ERROR	31500	Internal Server Error
VoiceException.EXCEPTION_BAD_GATEWAY	31502	Bad Gateway
VoiceException.EXCEPTION_SERVICE_UNAVAILABLE	31503	Service Unavailable
VoiceException.EXCEPTION_GATEWAY_TIMEOUT	31504	Gateway Timeout
CallException.EXCEPTION_DNS_RESOLUTION	31530	DNS Resolution Error
CallException.EXCEPTION_BUSY_EVERYWHERE_ERROR	31600	Busy Everywhere
CallException.EXCEPTION_DECLINE_ERROR	31603	Decline
CallException.EXCEPTION_DOES_NOT_EXIST_ANYWHERE_ERROR	31604	Does Not Exist Anywhere
CallException.EXCEPTION_SIGNALING_CONNECTION_DISCONNECTED	53001	Signaling connection disconnected
CallException.EXCEPTION_CLIENT_LOCAL_MEDIA_DESCRIPTION	53400	Client is unable to create or apply a local media description
CallException.EXCEPTION_SERVER_LOCAL_MEDIA_DESCRIPTION	53401	Server is unable to create or apply a local media description
CallException.EXCEPTION_CLIENT_REMOTE_MEDIA_DESCRIPTION	53402	Client is unable to apply a remote media description
CallException.EXCEPTION_SERVER_REMOTE_MEDIA_DESCRIPTION	53403	Server is unable to apply a remote media description
CallException.EXCEPTION_NO_SUPPORTED_CODEC	53404	No supported code
CallException.EXCEPTION_MEDIA_CONNECTION_FAILED	53405	Media connection failed

Insights :

Group Name	Event Name	Description	Since version
connection	outgoing	Outgoing call is made. Call state is in Call.State.CONNECTING state	3.0.0-beta2
settings	codec	Negotiated selected codec is received and remote SDP is set	5.0.1

If connect fails, an error event is published to Insights.

Group Name	Event Name	Description	Since version
connection	error	Error description. Call state transitions to Call.State.DISCONNECTED	3.0.0-beta2

Parameters:

context - An Android context.

connectOptions - A set of options that allow you to configure your Call.

listener - A listener that receives call status.

Returns:

A new Call

Usage example:

 ConnectOptions connectOptions = new ConnectOptions.Builder(accessToken).build();
 Call call = Voice.connect(context, connectOptions, new Call.Listener() {
      @Override
      public void onRinging(@NonNull Call call) {
          Log.d(TAG, "Ringing");
      }

      @Override
      public void onConnected(@NonNull final Call call) {
          Log.d(TAG, "Received onConnected " + call.getSid());
      }

      @Override
      public void onConnectFailure(@NonNull Call call, @NonNull CallException callException) {
          Log.d(TAG, "Received onConnectFailure with CallException: " + callException.getErrorCode()+ ":" + callException.getMessage());
      }

      @Override
      public void onDisconnected(@NonNull Call call, CallException callException) {
          if (callException != null) {
              Log.d(TAG, "Received onDisconnected with CallException: " + callException.getMessage() + ": " + call.getSid());
          } else {
              Log.d(TAG, "Received onDisconnected");
          }
      }
  });
  }
 

connect

public static Call connect(android.content.Context context,
                           String accessToken,
                           Call.Listener listener)

Creates and returns a new Call. A SecurityException will be thrown if RECORD_AUDIO is not granted.

Call.Listener receives the state of the Call.

Callback Name	Description	Since version
Call.Listener.onConnectFailure(Call, CallException)	The call failed to connect. CallException provides details of the root cause.	3.0.0-preview1
Call.Listener.onRinging(Call)	Emitted once before the Call.Listener.onConnected(Call) callback when the callee is being alerted of a Call.	3.0.0-preview2
Call.Listener.onConnected(Call)	The call has connected.	3.0.0-preview1
Call.Listener.onDisconnected(Call, CallException)	The call was disconnected. If the call ends due to an error the `CallException` is non-null. If the call ends normally `CallException` is null.	3.0.0-preview1

If connect fails, Call.Listener.onConnectFailure(Call, CallException) callback is raised with CallException. VoiceException.getMessage() and VoiceException.getExplanation() provide details of the failure. If Call.disconnect() is called while attempting to connect, the Call.Listener.onDisconnected(Call, CallException) callback will be raised with no error.

If connect(Context, String, Call.Listener) fails due to an authentication error, the SDK receives one of the following errors.

Authentication Exception	Error Code	Description
VoiceException.EXCEPTION_INVALID_ACCESS_TOKEN	20101	Twilio was unable to validate your Access Token
VoiceException.EXCEPTION_INVALID_ACCESS_TOKEN_HEADER	20102	Invalid Access Token header
VoiceException.EXCEPTION_INVALID_ISSUER_SUBJECT	20103	Invalid Access Token issuer or subject
VoiceException.EXCEPTION_INVALID_ACCESS_TOKEN_EXPIRY	20104	Access Token has expired or expiration date is invalid
VoiceException.EXCEPTION_INVALID_ACCESS_TOKEN_NOT_VALID_YET	20105	Access Token not yet valid
VoiceException.EXCEPTION_INVALID_ACCESS_TOKEN_GRANT	20106	Invalid Access Token grants
VoiceException.EXCEPTION_AUTH_FAILURE	20151	Twilio failed to authenticate the client
VoiceException.EXCEPTION_INVALID_TTL	20157	Expiration Time in the Access Token Exceeds Maximum Time Allowed
VoiceException.EXCEPTION_INVALID_TOKEN	20403	Forbidden. The account lacks permission to access the Twilio API
CallException.EXCEPTION_INVALID_APPLICATION_SID	21218	Invalid ApplicationSid

If connect(Context, String, Call.Listener) fails due to any other reason, the SDK receives one of the following errors.

Call Exception	Error Code	Description
CallException.EXCEPTION_CONNECTION_ERROR	31005	Connection error
CallException.EXCEPTION_CALL_CANCELLED	31008	Call Cancelled
CallException.EXCEPTION_TRANSPORT_ERROR	31009	Transport error
CallException.EXCEPTION_MALFORMED_REQUEST	31100	Malformed request
CallException.EXCEPTION_AUTHORIZATION_ERROR	31201	Authorization error
VoiceException.EXCEPTION_BAD_REQUEST	31400	Bad Request
VoiceException.EXCEPTION_FORBIDDEN	31403	Forbidden
VoiceException.EXCEPTION_NOT_FOUND	31404	Not Found
VoiceException.EXCEPTION_REQUEST_TIMEOUT	31408	Request Timeout
CallException.EXCEPTION_TEMPORARILY_UNAVAILABLE_ERROR	31480	Temporarily Unavailable
CallException.EXCEPTION_CALL_OR_TRANSACTION_DOES_NOT_EXIST_ERROR	31481	Call/Transaction Does Not Exist
CallException.EXCEPTION_ADDRESS_INCOMPLETE_ERROR	31484	Address Incomplete
CallException.EXCEPTION_BUSY_HERE_ERROR	31486	Busy Here
CallException.EXCEPTION_REQUEST_TERMINATED_ERROR	31487	Request Terminated
VoiceException.EXCEPTION_INTERNAL_SERVER_ERROR	31500	Internal Server Error
VoiceException.EXCEPTION_BAD_GATEWAY	31502	Bad Gateway
VoiceException.EXCEPTION_SERVICE_UNAVAILABLE	31503	Service Unavailable
VoiceException.EXCEPTION_GATEWAY_TIMEOUT	31504	Gateway Timeout
CallException.EXCEPTION_DNS_RESOLUTION	31530	DNS Resolution Error
CallException.EXCEPTION_BUSY_EVERYWHERE_ERROR	31600	Busy Everywhere
CallException.EXCEPTION_DECLINE_ERROR	31603	Decline
CallException.EXCEPTION_DOES_NOT_EXIST_ANYWHERE_ERROR	31604	Does Not Exist Anywhere
CallException.EXCEPTION_SIGNALING_CONNECTION_DISCONNECTED	53001	Signaling connection disconnected
CallException.EXCEPTION_CLIENT_LOCAL_MEDIA_DESCRIPTION	53400	Client is unable to create or apply a local media description
CallException.EXCEPTION_SERVER_LOCAL_MEDIA_DESCRIPTION	53401	Server is unable to create or apply a local media description
CallException.EXCEPTION_CLIENT_REMOTE_MEDIA_DESCRIPTION	53402	Client is unable to apply a remote media description
CallException.EXCEPTION_SERVER_REMOTE_MEDIA_DESCRIPTION	53403	Server is unable to apply a remote media description
CallException.EXCEPTION_NO_SUPPORTED_CODEC	53404	No supported code
CallException.EXCEPTION_MEDIA_CONNECTION_FAILED	53405	Media connection failed

The identity provided in the accessToken may only contain alpha-numeric and underscore characters. Other characters, including spaces, will result in undefined behavior.

Insights :

Group Name	Event Name	Description	Since version
connection	outgoing	Outgoing call is made. Call state is in Call.State.CONNECTING state	3.0.0-beta2
settings	codec	Negotiated selected codec is received and remote SDP is set	5.0.1

If connect fails, an error event is published to Insights.

Group Name	Event Name	Description	Since version
connection	error	Error description. Call state transitions to Call.State.DISCONNECTED	3.0.0-beta2

The maximum number of characters for the identity provided in the token is 121. The identity may only contain alpha-numeric and underscore characters. Other characters, including spaces, or exceeding the maximum number of characters, will result in not being able to place or receive calls.

Parameters:

context - An Android context.

accessToken - The accessToken that provides the identity and grants of the caller.

listener - A listener that receives call status.

Returns:

A new Call

Usage example:

 Call call = Voice.connect(context, accessToken, new Call.Listener() {
      @Override
      public void onRinging(@NonNull Call call) {
          Log.d(TAG, "Ringing");
      }

      @Override
      public void onConnected(@NonNull final Call call) {
          Log.d(TAG, "Received onConnected " + call.getSid());
      }

      @Override
      public void onConnectFailure(@NonNull Call call, @NonNull CallException callException) {
          Log.d(TAG, "Received onConnectFailure with CallException: " + callException.getErrorCode()+ ":" + callException.getMessage());
      }

      @Override
      public void onDisconnected(@NonNull Call call, CallException callException) {
          if (callException != null) {
              Log.d(TAG, "Received onDisconnected with CallException: " + callException.getMessage() + ": " + call.getSid());
          } else {
              Log.d(TAG, "Received onDisconnected");
          }
      }
  });
  }
 

handleMessage

public static boolean handleMessage(android.content.Context context,
                                    Map<String,String> data,
                                    MessageListener listener)

Handle messages from FCM.

Twilio sends call notification messages via GCM/FCM. The message type is encoded in the dictionary with the key twi_message_type with the value twilio.voice.call.

A call message is sent when someone wants to reach the registered identity. Passing a call message into handleMessage(Context, Bundle, MessageListener) will result in a CallInvite raised in the MessageListener and return true.

A CancelledCallInvite will be raised to the provided MessageListener for the following reasons:

• The call is prematurely disconnected by the caller
• The callee does not accept or reject the call within 30 seconds
• The SDK is unable to establish a connection to Twilio

Passing malformed data to handleMessage(Context, Map, MessageListener) will return false and no MessageListener callback will be raised.

Insights :

Group Name	Event Name	Description	Since version
connection	incoming	Incoming call notification received	3.0.0-preview1
connection	listen	Raised when an attempt to listen for cancellations is made	5.0.0
connection	listening	Raised when an attempt to listen for cancellations has succeeded	5.0.0
connection	cancel	Raised when a cancellation has been reported	5.0.0
connection	listening-error	Raised when an attempt to listen for cancellation has failed	5.0.0
registration	unsupported-cancel-message-error	Raised when a "cancel" push notification is processed by the SDK. This version of the SDK does not support "cancel" push notifications	5.0.0

Parameters:

context - An Android context.

data - Push notification payload.

listener - A MessageListener to receive incoming push notification callbacks.

Returns:

A boolean value that indicates whether the payload is a valid notification sent by Twilio.

Usage example:

 boolean valid = Voice.handleMessage(dataMap, new MessageListener() {
      @Override
      public void onCallInvite(@NonNull CallInvite callInvite) {
          Log.d(TAG, "Received CallInvite");
      }

      @Override
      public void onCancelledCallInvite(@NonNull CancelledCallInvite cancelledCallInvite) {
          Log.d(TAG, "Received CancelledCallInvite");
      }
 });
 

handleMessage

public static boolean handleMessage(android.content.Context context,
                                    android.os.Bundle data,
                                    MessageListener listener)

Handle messages from GCM.

Twilio sends call notification messages via GCM/FCM. The message type is encoded in the dictionary with the key twi_message_type with the value twilio.voice.call.

A call message is sent when someone wants to reach the registered identity. Passing a call message into handleMessage(Context, Bundle, MessageListener) will result in a CallInvite raised in the MessageListener and return true.

A CancelledCallInvite will be raised to the provided MessageListener for the following reasons:

• The call is prematurely disconnected by the caller
• The callee does not accept or reject the call within 30 seconds
• The SDK is unable to establish a connection to Twilio

Passing malformed data to handleMessage(Context, Map, MessageListener) will return false and no MessageListener callback will be raised.

Insights :

Group Name	Event Name	Description	Since version
connection	incoming	Incoming call notification received	3.0.0-preview1
connection	listen	Raised when an attempt to listen for cancellations is made	5.0.0
connection	listening	Raised when an attempt to listen for cancellations has succeeded	5.0.0
connection	cancel	Raised when a cancellation has been reported	5.0.0
connection	listening-error	Raised when an attempt to listen for cancellation has failed	5.0.0
registration	unsupported-cancel-message-error	Raised when a "cancel" push notification is processed by the SDK. This version of the SDK does not support "cancel" push notifications	5.0.0

Parameters:

context - An Android context.

data - Push notification payload.

listener - A MessageListener to receive incoming push notification callbacks.

Returns:

A boolean value that indicates whether the payload is a valid notification sent by Twilio.

Usage example:

 boolean valid = Voice.handleMessage(dataMap, new MessageListener() {
      @Override
      public void onCallInvite(@NonNull CallInvite callInvite) {
          Log.d(TAG, "Received CallInvite");
      }

      @Override
      public void onCancelledCallInvite(@NonNull CancelledCallInvite cancelledCallInvite) {
          Log.d(TAG, "Received CancelledCallInvite");
      }
 });
 

getVersion

public static String getVersion()

Returns the version of the Voice SDK.

Returns:

The version of the SDK.

getLogLevel

public static LogLevel getLogLevel()

Returns the logging level for messages logged by the Voice SDK. The default level is LogLevel.ERROR.

Returns:

the logging level

getModuleLogLevel

public static LogLevel getModuleLogLevel(LogModule module)

Returns the logging level for messages logged by the specified LogModule. The default log level for each module is LogLevel.ERROR.

Returns:

the logging level

isInsightsEnabled

public static boolean isInsightsEnabled()

Returns if reporting statistics to Insights is enabled. Sending stats data to Insights is enabled by default. The setting is specified in enableInsights and can be updated via enableInsights(boolean)

getRegion

@Deprecated
public static String getRegion()

Deprecated. As of release 5.3.0, use getEdge() instead.

Returns the region specified region. The default region uses Global Low Latency routing, which establishes a connection with the closest region to the user. This value can be updated via setRegion(String)

getEdge

public static String getEdge()

Returns the edge specified by edge. The default edge uses Global Low Latency (roaming edge location)routing, which establishes a connection with the closest data center to the user. This value can be updated via setRegion(String)

getAudioDevice

public static AudioDevice getAudioDevice()

Returns the AudioDevice.

setLogLevel

public static void setLogLevel(LogLevel level)

Sets the logging level for messages logged by the Voice SDK.

Parameters:

level - The logging level

setModuleLogLevel

public static void setModuleLogLevel(LogModule module,
                                     LogLevel level)

Sets the logging level for messages logged by a specific module.

Parameters:

module - The module for this log level.

level - The logging level.

enableInsights

public static void enableInsights(boolean enable)

Specify reporting statistics to Insights. Sending stats data to Insights is enabled by default.

NOTE: Setting the flag during a call will not be applied to ongoing calls. The flag will be applied to subsequent connect(Context, String, Call.Listener) or handleMessage(Context, Bundle, MessageListener) API calls.

setRegion

@Deprecated
public static void setRegion(String region)

Deprecated. As of release 5.3.0, use setEdge(String) instead.

Sets the region (Twilio data center) for the SDK. The default region uses Global Low Latency routing, which establishes a connection with the closest region to the user.

NOTE: Setting the region during a call will not be applied to ongoing calls. The region will be applied to subsequent connect(Context, String, Call.Listener) or handleMessage(Context, Bundle, MessageListener) API calls.

Parameters:

region - The region.

setEdge

public static void setEdge(String edge)

Sets the edge (Twilio data center) for the SDK. The edge value is a Twilio Edge name that corresponds to a geographic location of Twilio infrastructure that the client will connect to. The default value `roaming` automatically selects an edge based on the latency between client and available edges. `roaming` requires the upstream DNS to support [RFC7871](https://tools.ietf.org/html/rfc7871). See [Global Low Latency requirements](https://www.twilio.com/docs/voice/client/javascript/voice-client-js-and-mobile-sdks-network-connectivity-requirements#global-low-latency-requirements) for more information.

NOTE: Setting the edge during a call will not be applied to ongoing calls. The edge will be applied to subsequent connect(Context, String, Call.Listener) or handleMessage(Context, Bundle, MessageListener) API calls. The SDK will throw the IllegalArgumentException if both edge and `region` values are specified.

Parameters:

edge - The edge.

setAudioDevice

public static void setAudioDevice(AudioDevice audioDevice)
                           throws UnsupportedOperationException

Sets the custom audio device. The audioDevice can be updated when there is no call in progress and will be applied to subsequent connect(Context, String, Call.Listener) or handleMessage(Context, Bundle,MessageListener) API calls. Setting the audioDevice during a call will result in UnsupportedOperationException.

Parameters:

audioDevice - The audio device.

Throws:

UnsupportedOperationException