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36 Digital Telephone IP Adapter Installation and Administration Guide
Digital Telephone IP Adapter description Standard 2.1
How Digital Telephone IP Adapter units work
There are two major components to the Digital Telephone IP Adapter units.
They are:
1. the Digital Telephone Internal or External IP Adapter unit located at the
remote location
2. the RLC located on the host PBX
These two components, along with the connection options described on page 35,
extend the host PBX services to a remote user.
IP network diagram
G018
Host PBX
Ethernet
Internet
Access
Device
Internet
Corporate
WAN
Reach Line Card
Digital Telephone
External IP Adapter unit
Digital Telephone Internal
IP Adapter circuit card
OR
Digital telephone