Version 6.6 491 Mediant 800 MSBR
User's Manual 33. CRP Configuration
Always Emergency: The CRP routes the calls between the branch users themselves
as if connectivity failure has occurred with the IP PBX. The CRP also registers the
branch users in its registration database.
Figure 15: CRP in Always Emergency Mode
To configure the Call Survivability mode:
1. Open the General Settings page (Configuration tab > VoIP menu > CRP > General
Settings).
2. From the 'CRP Survivability Mode' drop-down list, select the required mode.
3. Click Submit.
33.3 Pre-Configured IP Groups
The IP Group table for CRP is pre-configured with the following IP Groups:
Table 3: Pre-configured IP Groups in the IP Group Table
Index Type Description
1 User Users
2 Server Proxy
3 Server Gateway
These IP Groups represent the following IP entities:
"Users" IP Group: LAN users (e.g., IP phones) at the branch office
"Server" IP Group: server (e.g., hosted IP PBX at headquarters)
"Gateway" IP Group: interface with the PSTN
These IP Groups are used in the IP-to-IP Routing rules to indicate the source and
destination of the call (see ''Pre-Configured IP-to-IP Routing Rules'' on page 492).
Notes:
• These IP Groups cannot be deleted and additional IP Groups cannot be
configured. The IP Groups can be edited, except for the fields listed
above, which are read-only.
• For accessing the IP Group table and for a description of its parameters,
see Configuring IP Groups on page 210.
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