Nortel Networks M3310 - Manual (Page 40)

40 Digital Telephone IP Adapter Installation and Administration Guide
Digital Telephone IP Adapter description Standard 2.1
Call scenario 2: host-controlled—corporate external call
The following diagram shows how a call is routed when placing a host-
controlled call to a party outside the organization using a Digital Telephone IP
Adapter unit.Calls work the same in reverse, from the host PBX site to the
Digital Telephone IP Adapter unit site.
G020IP
Host location
1 2
Host-controlled call (corporate external call)
Host
PBX
RLC
Voice over IP call
A
B
Host
stations
Ethernet
Internet Corporate
WAN
Remote site
Digital Telephone
External IP Adapter unit
Digital Telephone
Internal IP Adapter circuit card OR
Digital telephone
Internet
Access
Device