Why do calls fail with 503 SIP code?
Calls fail for a variety of reasons. SIP codes give us insights into reason for call failure.
503 code indicates that the server is unable to complete the call. This could happen due to multiple reasons. Whenever a call fails with 503 code, we recommend to check the call hang up code. If the call status is 'Failed 210', it indicates that the account does not have enough balance to complete the call.
We suggest to recharge the account and check.
If the account has a positive balance and the call status code is other than 'Failed 210', contact our team via live chat or raise a ticket.
Calls failed with code 221
Call status code 221 indicates that agent/employee is making more number of calls than allowed. It could happen due to various reasons. For example - An employee is allowed to make only one call. His account is used by another agent at the same time. ...
Calls failed with code 19
Call status code 19 code indicates the phone network is rejecting the calls. Such numbers may not be connected for various reasons such as - Caller ID is marked as spam Temporary network issues Calls to specific network are not allowed
What are call status codes?
Introduction In VOIP telephony every call has a status i.e.., Answered, Busy, No Answer or Failed. While it is pretty straightforward for calls with status ‘Answered’ or ‘Busy’, there could be various reasons for calls with status ‘No Answer’ and ...
Calls failed with code 1
Call hangup code 1 indicates that the number is likely not in use. This hangup code indicates that the number will not connect. You may raise a ticket with the details of numbers, date and time in case you are confident of the dialled number.
What are the SIP Response Code Categories? ☎️
In a SIP protocol, there could be a variety of response codes during a call. They are primarily categorised into six classes – 1xx is ‘Informational’ or ‘provisional’. These codes are noticed before a connection is made. 2xx is ‘Success’ 3xx is a ...