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User Manual - Configuration Guide (Volume 3)
Versatile Routing Platform
Chapter 1
VoIP Configuration
1-6
---Line group access
Set line group access, you can set multiple physical lines as one phone number, in this
case if there is an incoming call, it will automatically select the idle line for the reply to
reduce the configuration complexity and increase the networking capacity.
1.2 VoIP Configuration
1.2.1 VoIP Configuration Task List
The configuration tasks of the VoIP include:
z Configuring dial-peer
z Configuring dial terminator
z
Configuring abbreviated dialing
z Configuring voice port
z Configuring the global number match policy
z
Configuring the recovery method of voice board
1.2.2 Configuring Dial-peer
The key to mastering the VoIP configuration lies in understanding the dial-peers.
According to different locations (the calling side or the called side), we can divide a call
into four segments in a complete phone-to-phone connection and each segment
(called call leg) corresponds to a dial-peer.
IP Network
Call leg for
IP Network
Router Router
IP Network
Source Destination
Call leg for POTS
dial peer 1
Call leg for VOIP
dial peer 2
Source
Destination
Call leg for POTS
dial peer 4
Call leg for VOIP
dial peer 3
Router
IP Network
Router
Figure VC-1-4
Call division viewed from the router at both ends
From the above figure, we can see that, there are two types of the dial-peers used in
voice communications:
z
POTS dial-peer
z
VoIP dial-peer