SIP User's Manual 558 Document #: LTRT-12804
Mediant 800 MSBG
3. From the 'Enable Proxy Keep Alive' drop-down list, select 'Using Options' to enable
the Proxy Keep-alive mechanism.
Figure 8-72: Enabling Proxy Keep-Alive
4. Click Submit.
5. Save the settings to flash memory ("burn") and reset the device (see ''Saving
Configuration'' on page 336).
8.4.10.2.2 Step 2: Define Alternative Routing Rules
The procedure below describes how to configure an alternative route for the LAN users if
the main route (previously defined in ''Step 9: Define IP-to-IP Routing Rules'' on page 555)
become
s unavailable. Note that the alternative route must be defined in the row located
immediately below the main route for IP Group 1 (i.e., LAN users) in the table.
¾ To configure alternative IP-to-IP routing rule:
1. Open the 'IP2IP Routing Table' page (Configuration tab > VoIP menu > SBC
submenu > Routing SBC submenu > IP to IP Routing Table).
2. In the 'Add' field, enter '2', and then click Add; the new entry is added as Index 2,
immediately below the main route for Source IP Group 1. The previous entry Index 2
is now shifted down to Index 3.
3. From the 'Source IP Group ID' drop-down list, select '1'. This is the IP Group to which
the LAN users belong (as previously defined in ''Step 7: Define IP Groups'' on page
552).
4. From the 'Destination Type' drop-down list, select 'IP Group'.
5. From the 'Destination IP Group ID' drop-down list, select '1'. This routes calls between
the LAN users (i.e., between IP Group 1 and IP Group 1).
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