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Cisco Router 800 Series Software Configuration Guide

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Chapter 6      Configuring Telephone Interfaces
Creating Dial Peers
For example, if you have connected one voice device (555-1111) to port 1 and 
another (555-2222) to port 2, you can create two dial peers. The following output 
example shows two dial peers:
dial-peer voice 1 pots 
destination-pattern 5551111
port 1
no call-waiting
ring 0
dial-peer voice 2 pots 
destination-pattern 5552222
port 2
no call-waiting
ring 0
When a caller dials...

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Chapter 6      Configuring Telephone Interfaces
Forwarding Incoming ISDN Voice Calls to Connected Devices
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NoteMake sure that all ISDN directory numbers associated with a service profile 
identifier (SPID) are associated with one port. For example, if both 555-1111 and 
555-2222 are associated with SPID 1 and you associate 555-1111 to port 1 and 
555-2222 to port 2, you will not be able to make calls on ports 1 and 2 
simultaneously.
What You...

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Chapter 6      Configuring Telephone Interfaces
Configuring Advanced Telephone Features
NoteIf you do not enter the isdn incoming-voice modem command, the router rejects 
incoming ISDN voice calls.
Configuring Advanced Telephone Features
This section describes advanced telephone features and how to configure them. 
ISDN Voice Priority
The ISDN voice priority feature controls the priority of data and voice calls for 
telephones or fax machines...

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Chapter 6      Configuring Telephone Interfaces
Configuring Advanced Telephone Features
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For example, if you enter the following command, the outgoing voice priority for 
all directory numbers specified in the isdn spid1 command is set to conditional:
router(config-if)# isdn spid1 0  4 0 8 5 5 5 1111  4 0 8 5 5 5 2 2 2 2  4 0 8 5 5 53333router(config-if)# isdn voice-priority 5551111 out conditional
Ta b l e 6 - 1 describes the possible data...

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Chapter 6      Configuring Telephone Interfaces
Configuring Advanced Telephone Features
Data over Voice Bearer Service
NoteThis section applies only to analog telephone services in the U.S.
In some tariff areas, voice calls are less expensive than data calls. If this is the 
case in your tariff area, the Cisco 800 series routers support incoming and 
outgoing data over voice (DOV) calls. DOV calls are data calls made over the 
ISDN line using...

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Chapter 6      Configuring Telephone Interfaces
Configuring Advanced Telephone Features
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Figure 6-2 Voice Call over VBC Line Table 6-2 Key for Data Call over VBC Line
Callout 
Number Description
1 Analog telephone
2 ISDN BRI line with VBC
3 Central office switch
4 Ethernet LAN
74938
1
2
4
3
Table 6-3 Key for Voice Call over VBC Line
Callout 
Number Description
1 Analog telephone
2 ISDN BRI line with VBC
3 Router
4 Ethernet LAN 

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Chapter 6      Configuring Telephone Interfaces
Configuring Advanced Telephone Features
NoteWhen the router is configured for DOV, ISDN BRI calls are made with VBC, 
which has a data rate of 56 kbps, instead of the usual ISDN BRI data rate of 
64 kbps.
Use the following command to configure the router to accept incoming DOV 
calls:
isdn incoming-voice data 56
Follow these steps to configure the router to place outgoing DOV calls:
Distinctive...

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Chapter 6      Configuring Telephone Interfaces
Configuring Advanced Telephone Features
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NoteGenerally your telephone service provider assigns one ISDN directory number for 
each SPID. You must have one ISDN directory number for each distinctive ring 
that you set up. Therefore, if you want to set up two distinctive rings, you must 
request an additional ISDN directory number from your telephone service 
provider.
To configure the ringing...

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Chapter 6      Configuring Telephone Interfaces
How to Use Telephones Connected to Cisco 800 Series Routers
CIDCO
Fans Callscreener
GE Caller ID with phone
GE Caller ID without phone
Northwestern Bell Phone, Bell Phone
Radio Shack Caller ID System 350
The Cisco 800 series routers do not support the following devices:
Southwestern Bell Freedom Phone
TTY System
How to Use Telephones Connected to Cisco 800 
Series Routers
This section...

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Chapter 6      Configuring Telephone Interfaces
How to Use Telephones Connected to Cisco 800 Series Routers
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Step 2Send the entire set of digits to the switch by using one of the following methods:
Press the pound key (#) on the telephone keypad.
Wait 12 seconds without entering any digits. After 12 seconds, the router 
sends the set of digits to the switch.
Disabling Pound Key End-of-Call Function
You can disable the end-of-call function...
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