Master signaling and payload between HG 1500 and neighboring HG 3500,
slave signaling and payload between HG 1500 and initiating HG 3500.
TDM subscriber at HiPath 3000 sets up a connection to OpenScape 4000
A. OpenScape 4000 A routs the call via a trunking connection to OpenScape
4000 B. OpenScape 4000 B routes the call via another trunking connection
to OpenScape Voice. OpenScape Voice then sets up a connection to SIP
subscriber B. OpenScape 4000 B sets up a DMC between HG 3500 in OpenScape
4000 B and HG 1500 in HiPath 3000.