SIP

SIP 182 Queued vs 484 Address Incomplete

SIP 182 (Queued) is a 1xx Provisional response, while 484 (Address Incomplete) is a 4xx Client Failure response. 182 indicates that the called party is temporarily unavailable but the server has decided to queue the call rather than reject it. The call will be attempted when the callee becomes available. In contrast, 484 means that the Request-URI was incomplete. The server needs additional digits or information to route the call.

描述

The called party is temporarily unavailable but the server has decided to queue the call rather than reject it. The call will be attempted when the callee becomes available.

何时出现

In call center or queuing scenarios where the callee is busy but the system holds the call in a queue.

如何修复

Wait for the call to be dequeued. If queuing is not desired, configure the server to reject calls instead of queuing them.

描述

The Request-URI was incomplete. The server needs additional digits or information to route the call.

何时出现

When dialing a partial phone number that the server cannot resolve. Common in PSTN gateway scenarios with overlap dialing.

如何修复

Provide the complete destination address. Add missing digits or domain information to the Request-URI.

主要区别

1.

182 is a 1xx Provisional response, while 484 is a 4xx Client Failure response.

2.

SIP 182: The called party is temporarily unavailable but the server has decided to queue the call rather than reject it. The call will be attempted when the callee becomes available.

3.

SIP 484: The Request-URI was incomplete. The server needs additional digits or information to route the call.

4.

You encounter 182 when in call center or queuing scenarios where the callee is busy but the system holds the call in a queue.

5.

You encounter 484 when when dialing a partial phone number that the server cannot resolve. Common in PSTN gateway scenarios with overlap dialing.

何时使用哪个

For 182 (Queued): Wait for the call to be dequeued. If queuing is not desired, configure the server to reject calls instead of queuing them. For 484 (Address Incomplete): Provide the complete destination address. Add missing digits or domain information to the Request-URI.

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