SIP 180 Ringing vs 405 Method Not Allowed
SIP 180 (Ringing) is a 1xx Provisional response, while 405 (Method Not Allowed) is a 4xx Client Failure response. 180 indicates that the UA receiving the INVITE is trying to alert the user. This response is used to initiate local ringback tone at the caller's end. In contrast, 405 means that the method specified in the Request-Line is not allowed for the address identified by the Request-URI.
विवरण
The UA receiving the INVITE is trying to alert the user. This response is used to initiate local ringback tone at the caller's end.
जब आप इसे देखें
During call setup when the callee's phone is ringing. You should hear a ringback tone after receiving this response.
कैसे ठीक करें
No fix needed — the callee's device is ringing. If the call never connects after ringing, check the callee's device or call forwarding settings.
विवरण
The method specified in the Request-Line is not allowed for the address identified by the Request-URI.
जब आप इसे देखें
When sending a SIP method (e.g., MESSAGE, PUBLISH) that the server does not support for the target URI.
कैसे ठीक करें
Check the Allow header in the response to see which methods are supported. Use a supported method instead.
मुख्य अंतर
180 is a 1xx Provisional response, while 405 is a 4xx Client Failure response.
SIP 180: The UA receiving the INVITE is trying to alert the user. This response is used to initiate local ringback tone at the caller's end.
SIP 405: The method specified in the Request-Line is not allowed for the address identified by the Request-URI.
You encounter 180 when during call setup when the callee's phone is ringing. You should hear a ringback tone after receiving this response.
You encounter 405 when when sending a SIP method (e.g., MESSAGE, PUBLISH) that the server does not support for the target URI.
कब किसका उपयोग करें
For 180 (Ringing): No fix needed — the callee's device is ringing. If the call never connects after ringing, check the callee's device or call forwarding settings. For 405 (Method Not Allowed): Check the Allow header in the response to see which methods are supported. Use a supported method instead.