I personally keep getting this message flashing around whenever I try to make a call
Contact: Âsip:
[email protected]:5060
Call-ID: ffff0000000005ff8a4374
Cseq: 1658550643 INVITE
Server: (Very nice Sip Registrar/Proxy Server)
Allow: ACK, BYE, CANCEL, INVITE, REGISTER, OPTIONS, INFO...