No special configuration is required for E-MetroTel XStim and Nortel/Avaya Unistim IP phones that are to be used in the survivable mode. These phones should be configured according to the section Configure Nortel IP Phones. Both server entries (S1 and S2 values) must be configured with the IP address of the UCx at the branch office that is being configured for use as an SRG.
If both the Main Office (MO) and the Branch Office (SRG) are UCx servers, configure the Nortel IP phones with the same extension number, password and features on both servers.
Nortel/Avaya digital phones connected via the DSM16 (16 port Digital Station Module) as supported in standard UCx deployments are also supported within the SRG environment. Although the individual sets do not get programmed with S1 and S2 server entries in the same manner as above for XStim and Unistim IP telephones, the DSM16 itself would be configured with the S1/S2 address of the UCx server at the branch office that is being configured for use as an SRG.
If both the Main Office (MO) and the Branch Office (SRG) are UCx servers, configure the Nortel/Avaya digital phones with the same extension number, password and features on both servers.
Refer to the DSM16 - Gateway Configuration: Call Server page for instructions on how to configure the S1/S2 addresses on the DSM16.
All SRG-capable phones are associated with the Nortel Phones extension programming.
By default, all such Nortel Phones are configured to operate in Normal Mode (i.e., registered with the main office server) when the SRG Mode is enabled. You can use the Survivability Options section of the Edit Nortel Device configuration page to
To configure survivability options for a specific SRG-capable exten, perform the following steps: