Nortel Networks 9150 - Manual (Page 50)

20 Remote Gateway 9150 Installation and Administration Guide
Remote Gateway 9150 description Standard 3.1
Call scenario 1: host-controlled—internal corporate call
The following diagram shows how a call is routed when making a
host-controlled call to the corporate office.
The network that is used to route the host-controlled call is transparent to the
user, and the dialing requirement is the same for both. Calls work the same way
in reverse, from host PBX site to the Remote Gateway 9150 site.
G101392
RX TX
V.35 STATU S
4 3 2
1
L2 L1 L2 L1 L2 L1 L2 L1 MODU LE
COLL RX TX
ETHER NET
POWE R
Up to 32 digital telephones
Remote Gateway 9150
Branch office
(Chicago)
Host-controlled call (corporate internal call)
Host location
(Los
Angeles)
Host
stations
User 1 User 2 User 3
2
Central office trunks
(ISDN BRI)
ISDN PRI
Ethernet network
PSTN
Host
PBX
RLC
1 3
Voice over IP call
PSTN call
1
2
3
4
A
B
C