Hi List,
I recently installed Linphone on Mac. It is registered to Asterisk 11.21.0. I added a contact with a sip address. I can see the SUBSCRIBE that is generated by Linphone on my Asterisk box, but it doesn't contain an Accept header. I see the following warning in Asterisk log:
SUBSCRIBE failure: no Accept header: pvt: stateid: -1, laststate: 0, dialogver: 0, subscribecont: '', subscribeuri: ''
Asterisk response with 489 Bad Event. All contacts in Linphone appear as offline.