Get rid of 1xx error codes and other problems by signing up with the best VoIP provider for businesses: https://www.voyced.eu
We have virtual numbers and services in over a 165+ countries and all our A-Z termination solutions are based on premium Plus (= the Highest quality possible)
1xx—Provisional Responses
100 Trying
Extended search being performed may take a significant time so a forking proxy must send a 100 Trying response.
180 Ringing
Destination user agent received INVITE, and is alerting the user of call.
181 Call is Being Forwarded
Servers can optionally send this response to indicate a call is being forwarded.
182 Queued
Indicates that the destination was temporarily unavailable, so the server has queued the call until the destination is available. A server may send multiple 182 responses to update the progress of the queue.
183 Session in Progress
This response may be used to send extra information for a call which is still being set up.
199 Early Dialog Terminated
Can be used by User Agent Server to indicate to upstream SIP entities (including the User Agent Client (UAC)) that an early dialog has been terminated.
Independent source: WikiPedia
Last updated: 01/01/2024
© Voyced
All information provided is copyrighted and purely informative in nature. It is maintained by Voyced with the greatest of care using reliable sources only.
Given the fast evolution of the telecom sector, Voyced does not offer any guarantee about the accuracy and completeness of the information offered.
We explicitly do not give anyone permission to use this information in any other way than to inform themselves about what (legal) requirements there may be and they need to comply with when registering Services and/or DIDs with Voyced.
