Dialogic 1000Series, Руководство пользователя

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Dialogic
®
1000 and 2000 Media Gateway Series User’s Guide 27
Overview
Figure 1. Typical IP Gateway Phone Emulating Topology - PBX Connection
Figure 2. Typical IP Gateway Phone Emulating Topology - PSTN Connection
1.1.1.1 Serial Protocol Support in Phone Emulating Mode
By emulating telephone sets to the switch, the Media Gateway provides call party information over
the IP network. However, the amount of call party information that the Media Gateway can provide
is limited to the amount of data that the switch provides its station sets. Some proprietary switches
Digital PBX
Media Gateway
(All Phone Emulating Models)
PSTN
Digital
Telephone
Digital
Telephone
VoIP
Terminal
Device
VoIP
Terminal
Device
1 - 8
Digital
Phone
Lines
LAN
or
1 - 4
T1/E1 Trunks
DMG1008LSW
DMG1000 Media Gateway
or
DMG2000 Media Gateway
PSTN
VoIP
Terminal
Device
VoIP
Terminal
Device
LAN
1 - 8 Analog
Phone Lines
or
1 - 4 T1/E1
Trunks
Note: The T1/E1 Models must only be connected to
the PSTN through an NTU, CSU or other
device that provides line isolation.