5. SIP ~ INVITE From: āGraham Francisā <sip:6886756@sipcom.com> To: <sip:5767445@sipcom.com> Audio Codec ā G711 or ā¦ Audio Codec ā G729
6. 200 OK From: āGraham Francisā <sip:6886756@sipcom.com> To: <sip:5767445@sipcom.com> Letās use Audio Codec ā G711
7. ACK From: āGraham Francisā <sip:6886756@sipcom.com> To: <sip:5767445@sipcom.com> Acknowledgement VoIP VoIP VoIP VoIP VoIP VoIP VoIP VoIP VoIP VoIP VoIP VoIP VoIP VoIP VoIP VoIP VoIP
8. Unified Clients Unified Server Inc. Registrar and Location services SIP IP Phones Directory DNS Messaging Server Gateway PBX Firewall / NAT ITSP
29. ā The Mitel āSIP Center of Excellenceā is pleased to announce that it fully supports and endorses The SIP School and the SSCAā¢ as itās program of choice for SIP training and certification for itās own technical staff, channel partners and clients.ā
Welcome, my name is Graham Francis ā Iām from The SIP School and thanks for coming along today Iāve got one question thatās bugging me about all these great looking Unified Communications products and services around here today and that is ā¦. will they all work as well as they claim? And will they continue to work at networks evolve? Letās come back to that question later?