API 0.13.x Refer Client Context Refer Server Context Overview Simple Simple Configuration Parameters UA (User Agent) UA Configuration Parameters Session Session Description Handler Transport WebSocket Transport Contexts Client Context Server Context Message Refer Refer Client Context Refer Server Context Register Context Subscription Publish Client Context Subscription Client Context Data Structures URI Construction Instance Methods Static Methods NameAddrHeader Construction Instance Variables Instance Methods Static Methods Requests and Responses Instance Variables Instance Methods Advanced SIP.Grammar Instance Variables Methods Failure and End Causes Common Causes Sip Error Causes Session Causes