OTSessionICEConfig

Defines the OTSessionSettings.iceConfig property. This defines the TURN servers to be used by the client in the session.

For more information, see the configurable TURN servers developer guide.

Name	Type	Description
`includeServers`	enum OTSessionICEIncludeServers	Defines settings for whether to use only your custom TURN servers or to use those servers in addition to OpenTok TURN servers.
`transportPolicy`	enum OTSessionICETransportPolicy	Whether to use all ICE transport types (such as host, srflx, and TURN) to establish media connectivity or to only use TURN.
`customIceServers`	NSArray *	An NSArray of TURN servers added with OTSessionICEConfig addICEServerWithURL:. Each element in the array is an NSDictionary with turn_url, username, and credential as keys.
`filterOutLanCandidates`	BOOL	Whether to filter out host ICE candidate types from the same local area network, forcing the application to not use the local network to establish media connectivity. See this topic.

Name	Description
`(static) maxTURNServersLimit() → {NSInteger}`	The maximum number of custom TURN servers allowed.
`addICEServerWithURL:userName:credential:error:(turn_url, username, credential, errorPtr)`	Adds a custom ICE server to be used by the session.

The maximum number of custom TURN servers allowed.

Adds a custom ICE server to be used by the session.

The URL is not valid
The user name or credential is empty
The maximum TURN servers limit was already reached (see maxUserTurnServersLimit).

Name	Type	Description
`turn_url`	NSString *	The URL for the custom TURN server.
`username`	NSString *	The username for the TURN server.
`credential`	NSString *	The credential string for the TURN server.
`errorPtr`	NSError * *	This is set to an NSError when there is an error calling the method, such as: