3
Voice Software Enhancements for the Cisco 1750 and Cisco 1751 Routers
OL-1671-01
Supported Features
Restrictions
When no dial-peer is provisioned, and if Caller ID information is transmitted from the VIC-2FXO-M1
and VIC-2FXO-M2 cards over VoIP, a null translation rule has to be applied to the voice port. The
following configuration is required:
translation-rule 1
Rule 1 null null
voice-port 0/0
translate calling 1
translate called 1
Configuring Voice Ports to Support Caller ID
Before configuring the Caller ID feature, follow these steps to configure a voice port. Each voice port
must be configured individually.
Not all voice-port commands appear here. Use the reference information in the “Related Documents”
section on page 1 to find out more about voice-port configuration.
Command Purpose
Step 1
Router> enable
Enter exec mode.
Step 2
Router# configure terminal
Enter global configuration mode.
Step 3
Router(config)# voice-port
slot-number/port-number
Enter voice-port configuration mode on a Cisco 1750 or Cisco 1751
router.
Step 4
Router(config-voiceport)# connection
{plar | tie-line | plar-opx} digits
{trunk digits [answer-mode]}
Specify the voice-port connection type and the destination telephone
number:
• plar for private line automatic ringdown.
• tie-line for a tie-line connection to a PBX.
• plar-opx for PLAR off-premises extension (the local voice port
provides a local response before the remote voice port receives an
answer).
• trunk for a straight tie-line connection to a PBX.
• answer-mode if a trunk connection is specified and the router
should not attempt to initiate a trunk connection, but should wait
for an incoming call before establishing the trunk.
• digits specifies the destination telephone number.
Step 5
Router(config-voiceport)# voice
confirmation-tone
If connection plar or connection plar-opx is configured, enable the
two-beep confirmation tone that a caller hears when picking up the
handset.
Step 6
Router(config-voiceport)# dial-type
{dtmf | pulse}
(FXO ports only.) Select the appropriate dial type for out-dialing.
Step 7
Router(config-voiceport)# signal
{loop-start | ground-start}
Select the appropriate signal type for this interface.
Step 8
Router(config-voiceport)# cptone
locale
Select the appropriate voice call progress tone for this interface. Caller
ID requires this setting. The Caller ID standard (Bellcore/Telcordia,
ETSI, ETSI-DTMF) is determined by this command.
On Cisco 1750 or Cisco 1751 router, the default setting for locale is us.
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