Alcatel-Lucent omniacces-voip gateway Manual Do Utilizador

Page 5-227

For each new H.323 call, the CCB number is incremented. The first call would be CCB 0, the 
second would be CCB 1 and so on, as shown below where the RTCP port number is set one 
number higher than the RTP port number, e.g., the starting RTP port number is 30001 (with a 
base of 30000), and the starting RTCP port number is 30002.

• On the first incoming H.323 call setup message, the starting RTP port number would be 

30003, and the starting RTCP port number would be 30004.

• On the next incoming H.323 call setup message, the starting RTP port number would be 

30004, and the starting RTCP port number would be 30005.

• On the subsequent incoming H.323 call setup message, the starting RTP port number 

would be 30006, and the starting RTCP port number would be 30007, and so on.

Gatekeeper User Datagram Protocol (UDP) Discovery Multicast Address: 224.0.1.41

Gatekeeper UDP Discovery Port (automatic discovery): 1718

Gatekeeper UDP Registration and Status Port (manual discovery): 1719

Endpoint Transmission Control Protocol (TCP) Call Signaling Port: 1720