Specifications

Setting Up Call Handling
How to Set Up Call Handling
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Cisco IOS Survivable Remote Site Telephony Version 3.4 System Administrator Guide
DETAILED STEPS
Example
The following example creates access code number 8 for BRI and enables DID on the POTS dial peer:
call-manager-fallback
access-code bri 8 direct-inward-dial
Configuring Interdigit Timeout Values
Configuring interdigit timeout values involves specifying how long, in seconds, all Cisco IP phones
attached to a Cisco SRST router are to wait after an initial digit or a subsequent digit is dialed. The
timeouts interdigit timer is enabled when a caller enters a digit and is restarted each time the caller
enters subsequent digits until the destination address is identified. If the configured timeout value is
exceeded before the destination address is identified, a tone sounds and the call is terminated.
Note This value setting is important when using variable-length dial-peer destination patterns (dial plans). For
more information on setting dial plans, see the “Configuration Dial Plans, Dial Peers, and Digit
Manipulation” chapter of the Cisco IOS Voice, Video, and Fax Configuration Guide, Release 12.2.
Command or Action Purpose
Step 1
call-manager-fallback
Example:
Router(config)# call-manager-fallback
Enters call-manager-fallback configuration mode.
Step 2
access-code {{fxo | e&m} dial-string | {bri |
pri} dial-string [direct-inward-dial]}
Example:
Router(config-cm-fallback)# access-code e&m 8
Configures trunk access codes for each type of line so that
the Cisco IP phones can access the trunk lines only in Cisco
CallManager fallback mode when the Cisco SRST is
enabled.
• fxo—Enables a Foreign Exchange Office (FXO)
interface.
• e&m—Enables an analog Ear and Mouth (E&M)
interface.
• dial-string—String of characters that sets up dial
access codes for each specified line type by creating
dial peers. The dial-string argument is used to set up
temporary dial peers for each specified line type.
• bri—Enables a BRI interface.
• pri—Enables a PRI interface.
• direct-inward-dial—(Optional) Enables Direct
Inward Dialing (DID) on the POTS dial peer.
Step 3
exit
Example:
Router(config-cm-fallback)# exit
Exits call-manager-fallback configuration mode.