What is SIP calling

SIP Header fields. SIP 信頭欄位[RFC3261 §20] 有些信頭欄位只在特定請求或回應有意義，不該出現的或不認識的都忽略。一些常見的信頭欄位名稱也定義 ...

SIP Headers ; Modules ; SIP Header X - Conventions ; For a SIP header X, there are types, functio...

Session Initiation Protocol (SIP) Extension Header Field for Registering Non-Adjacent Contacts (R...

A SIP header that begins with X can be used to convey any information. For example, an X-Header i...

1 Generating the Request A valid SIP request formulated by a UAC MUST, at a minimum, contain the ...