Configuring Voice Backup; Backup With Analog Telephones - Teldat -3Ge Quick Manual

Teldat S.A.
Note
In order for the voice backup feature to work, you must either give the Teldat-3Ge device a default
route from the DHCP server, or configure a SIP-proxy address through the "sipserver" parameter in op-
tion 43 of the DHCP protocol.

2.8 Configuring Voice Backup

The backup telephone configuration depends on the selected option (be this analog telephones, SIP telephones, or a
mixture of both).
The Teldat-3Ge device can operate with a SIP-proxy which is different from the router to which it is connected. You
only need to configure the SIP-proxy IP address through the " sipserver" parameter (DHCP option 43). In this case,
the router connected to the Teldat-3Ge device does not need voice features.
Note
In order for the voice backup feature to work, you must either give the Teldat-3Ge device a default
route from the DHCP server, or configure a SIP-proxy address through the "sipserver" parameter in op-
tion 43 of the DHCP protocol.

2.8.1 Backup with analog telephones

Operating with one or several analog telephones means you have to install a VoIP expansion card in the TELDAT
router. The card has 4 lines that can be configured as FXS or FXO, depending on whether you are going to connect
telephone terminals or telephone lines. In this case, since the analog telephone is connected, you have to indicate
which line is going to be connected in the configuration. The following configuration defines the telephone connection
to line 1:
network voip1/0
; -- VoIP interface Configuration --
line 1 interface-type fxs
exit
;
The following point in the configuration is the definition of the dial-peers (for further information, please see manual
Dm722-I Telephony over IP ). The following configuration defines two dial-peers, one for calls generated by the ana-
log telephone and the other for calls to the analog telephone:
telephony
; -- Telephony configuration --
dial-peer 1 voice-port
no vad
destination-pattern 607081119
target voice-port voip1/0 1
exit
;
dial-peer 2 sip
no vad
codec g711alaw
destination-pattern T
target ipv4 192.24.78.28
exit
;
exit
;
Dial-peer 1 defines the mechanism to be followed when executing a call from the Teldat-3Ge . The destination-pat-
tern parameter indicates that if the called number is the number that appears in the configuration, the call is routed
over the expansion module's line 1.
Teldat-3Ge Quick Guide
2 Configuration
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