SipRegisterIntervalError

When an application receives the SipRegisterIntervalError event, it indicates that the telephony engine attempted to register with the specified SIP registrar server.

The server however declined the registration request because the registration time interval is not acceptable. If you receive this error, please refer to the user documentation for your SIP registration server.

Note also that the EnableSipRegisterServer API procedure can also return this value immediately if a registration interval of 0 seconds was specified when the telephony engine was asked to initiate registration cycles with a SIP register server. A valid non zero registration interval must be specified to remove this error. Registration intervals are specified using a value that represents the number of second in between registration periods.
 

The telephony engine can only verify that a non zero number of seconds has been specified for the registration period. If a registration cycle is attempted and the registration interval is unacceptable to the SIP register server, the application will also receive this error via the callback event mechanism when the registration is denied.

For further information, see the EnableSipRegisterServer API procedure.