SIP 200 OK vs 414 Request-URI Too Long
SIP 200 (OK) is a 2xx Success response, while 414 (Request-URI Too Long) is a 4xx Client Failure response. 200 indicates that the request has succeeded. For INVITE, the call has been answered. For other methods, the action has been completed successfully. In contrast, 414 means that the server is refusing to service the request because the Request-URI is longer than the server is willing to interpret.
Description
The request has succeeded. For INVITE, the call has been answered. For other methods, the action has been completed successfully.
When You See It
When a call is answered (INVITE 200 OK), a registration succeeds (REGISTER 200 OK), or a subscription is accepted (SUBSCRIBE 200 OK).
How to Fix
No fix needed — this is a success response. The caller should send an ACK to complete the three-way handshake for INVITE transactions.
Description
The server is refusing to service the request because the Request-URI is longer than the server is willing to interpret.
When You See It
When the SIP URI in the request line is excessively long, which may happen with URI parameters or long phone numbers.
How to Fix
Shorten the Request-URI. Remove unnecessary parameters or use a shorter alias for the destination.
Key Differences
200 is a 2xx Success response, while 414 is a 4xx Client Failure response.
SIP 200: The request has succeeded. For INVITE, the call has been answered. For other methods, the action has been completed successfully.
SIP 414: The server is refusing to service the request because the Request-URI is longer than the server is willing to interpret.
You encounter 200 when when a call is answered (INVITE 200 OK), a registration succeeds (REGISTER 200 OK), or a subscription is accepted (SUBSCRIBE 200 OK).
You encounter 414 when when the SIP URI in the request line is excessively long, which may happen with URI parameters or long phone numbers.
When to Use Which
For 200 (OK): No fix needed — this is a success response. The caller should send an ACK to complete the three-way handshake for INVITE transactions. For 414 (Request-URI Too Long): Shorten the Request-URI. Remove unnecessary parameters or use a shorter alias for the destination.