do anybody know, if there is chance to monitoring calls for SIP phone on SRST (CME in SRST mode) gateway?
I need to receive information about ringing and connected call - calling and called numbers.
- CME CTI - this API doesn't support SIP phones
- subscribe for presence on CME - I receive only presence information that phone/line is busy - this information is without any calling/called numbers.
- subscribe for dialog events - I receive OK confirmation, but next I don't receive any notify message from GW
- subscribe for telephone-event - same as for dialog events
- TCP and UDP version of SIP - same result
- sending SUBSCRIBE request directly to the phone - the phone reject these requests - with response 489