WebRTC iOS Client Configuration

STRUCT

TxConfig

public struct TxConfig

This structure is intended to used for Telnyx SDK configurations.

public static let DEFAULT_TIMEOUT = 60.0

Default timeout value for reconnection attempts in seconds. After this period, if a call hasn't successfully reconnected, it will be terminated.

public internal(set) var sipUser: String?

public internal(set) var password: String?

public internal(set) var token: String?

public internal(set) var pushNotificationConfig: TxPushConfig?

public internal(set) var ringBackTone: String?

public internal(set) var ringtone: String?

public internal(set) var reconnectClient: Bool = true

public internal(set) var pushEnvironment: PushEnvironment?

public internal(set) var debug: Bool = false

Enables WebRTC communication statistics reporting to Telnyx servers.

• Note: This flag is different from logLevel:
  • debug: When enabled, sends WebRTC communication statistics to Telnyx servers for monitoring and debugging purposes. See WebRTCStatsReporter class for details on the statistics collected.
  • logLevel: Controls console log output in Xcode when running the app in debug mode.
• Important: The debug flag is disabled by default to minimize data usage.

public internal(set) var forceRelayCandidate: Bool = false

Controls whether the SDK should force TURN relay for peer connections. When enabled, the SDK will only use TURN relay candidates for ICE gathering, which prevents the "local network access" permission popup from appearing.

• Note: Enabling this may affect the quality of calls when devices are on the same local network, as all media will be relayed through TURN servers.
• Important: This setting is disabled by default to maintain optimal call quality.

public internal(set) var reconnectTimeout: Double = DEFAULT_TIMEOUT

Maximum time (in seconds) the SDK will attempt to reconnect a call after network disruption.

• If a call is successfully reconnected within this time, the call continues normally.
• If reconnection fails after this timeout period, the call will be terminated and a reconnectFailed error will be triggered.
• Default value is 60 seconds (defined by DEFAULT_TIMEOUT).
• This timeout helps prevent calls from being stuck in a "reconnecting" state indefinitely.

public internal(set) var customLogger: TxLogger?

Custom logger implementation for handling SDK logs If not provided, the default logger will be used

public init(sipUser: String, password: String,
            pushDeviceToken: String? = nil,
            ringtone: String? = nil,
            ringBackTone: String? = nil,
            pushEnvironment: PushEnvironment? = nil,
            logLevel: LogLevel = .none,
            customLogger: TxLogger? = nil,
            reconnectClient: Bool = true,
            debug: Bool = false,
            forceRelayCandidate: Bool = false,
            reconnectTimeOut: Double = DEFAULT_TIMEOUT
)

Constructor for the Telnyx SDK configuration using SIP credentials.

• Parameters:
  • sipUser: The SIP username for authentication
  • password: The password associated with the SIP user
  • pushDeviceToken: (Optional) The device's push notification token, required for receiving inbound call notifications
  • ringtone: (Optional) The audio file name to play for incoming calls (e.g., "my-ringtone.mp3")
  • ringBackTone: (Optional) The audio file name to play while making outbound calls (e.g., "my-ringbacktone.mp3")
  • logLevel: (Optional) The verbosity level for SDK logs (defaults to .none)
  • customLogger: (Optional) Custom logger implementation for handling SDK logs. If not provided, the default logger will be used
  • reconnectTimeOut: (Optional) Maximum time in seconds the SDK will attempt to reconnect a call after network disruption. Default is 60 seconds.

Name	Description
sipUser	The SIP username for authentication
password	The password associated with the SIP user
pushDeviceToken	(Optional) The device’s push notification token, required for receiving inbound call notifications
ringtone	(Optional) The audio file name to play for incoming calls (e.g., “my-ringtone.mp3”)
ringBackTone	(Optional) The audio file name to play while making outbound calls (e.g., “my-ringbacktone.mp3”)
logLevel	(Optional) The verbosity level for SDK logs (defaults to .none)
customLogger	(Optional) Custom logger implementation for handling SDK logs. If not provided, the default logger will be used
reconnectTimeOut	(Optional) Maximum time in seconds the SDK will attempt to reconnect a call after network disruption. Default is 60 seconds.

public init(token: String,
            pushDeviceToken: String? = nil,
            ringtone: String? = nil,
            ringBackTone: String? = nil,
            pushEnvironment: PushEnvironment? = nil,
            logLevel: LogLevel = .none,
            customLogger: TxLogger? = nil,
            reconnectClient: Bool = true,
            debug: Bool = false,
            forceRelayCandidate: Bool = false,
            reconnectTimeOut: Double = DEFAULT_TIMEOUT
)

Constructor for the Telnyx SDK configuration using JWT token authentication.

• Parameters:
  • token: JWT token generated from https://developers.telnyx.com/docs/v2/webrtc/quickstart
  • pushDeviceToken: (Optional) The device's push notification token, required for receiving inbound call notifications
  • ringtone: (Optional) The audio file name to play for incoming calls (e.g., "my-ringtone.mp3")
  • ringBackTone: (Optional) The audio file name to play while making outbound calls (e.g., "my-ringbacktone.mp3")
  • logLevel: (Optional) The verbosity level for SDK logs (defaults to .none)
  • customLogger: (Optional) Custom logger implementation for handling SDK logs. If not provided, the default logger will be used
  • serverConfiguration: (Optional) Custom configuration for signaling server and TURN/STUN servers (defaults to Telnyx Production servers)
  • reconnectTimeOut: (Optional) Maximum time in seconds the SDK will attempt to reconnect a call after network disruption. Default is 60 seconds.

Name	Description
token	JWT token generated from https://developers.telnyx.com/docs/v2/webrtc/quickstart
pushDeviceToken	(Optional) The device’s push notification token, required for receiving inbound call notifications
ringtone	(Optional) The audio file name to play for incoming calls (e.g., “my-ringtone.mp3”)
ringBackTone	(Optional) The audio file name to play while making outbound calls (e.g., “my-ringbacktone.mp3”)
logLevel	(Optional) The verbosity level for SDK logs (defaults to .none)
customLogger	(Optional) Custom logger implementation for handling SDK logs. If not provided, the default logger will be used
serverConfiguration	(Optional) Custom configuration for signaling server and TURN/STUN servers (defaults to Telnyx Production servers)
reconnectTimeOut	(Optional) Maximum time in seconds the SDK will attempt to reconnect a call after network disruption. Default is 60 seconds.

public func validateParams() throws

Validate if TxConfig parameters are valid

• Throws: Throws TxConfig parameters errors