Table Of Contents
Forwarding Incoming Calls to Unused Ports on Cisco 800 Series Routers
Supported Standards, MIBs and RFCs
Setting up the Dial Peer Configuration to Forward an Incoming Call to an Unused Port
Verifying that Forwarding Incoming Call to Unused Port is Enabled
Forwarding Incoming Calls to Unused Ports on Cisco 800 Series Routers
This document describes how to set up the dial-peer configuration in the router to forward an incoming call to an unused port. The following sections are included:
The following sections are included:
Feature Overview
Supported Platforms
Supported Standards, MIBs, and RFCs
Prerequisites
Configuration Tasks
Configuration Examples
Command Reference
Feature Overview
The Cisco 800 series routers connect small professional offices over Integrated Services Digital (ISDN) Basic Rate Interface (BRI) lines to corporate networks and to the Internet. The routers provide bridging and multiprotocol routing capability between LAN and WAN ports. Cisco IOS Release 12.0(4)T provides software support for the Cisco 800 series routers.
This feature allows the router to forward an incoming call to an unused port. The default is no forward-to-unused-port.
Benefits
This feature allows the user to receive all calls into one POTS port. If there are two calls at the same time, the second call may be forwarded to another port or cause the first call to be interrupted by a call-waiting tone.
Supported Platforms
This feature is supported on the following platforms:
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Cisco 801 router
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Supported Standards, MIBs and RFCs
None
Prerequisites
The following prerequisites apply to this feature:
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Configuration Tasks
This section describes setting up the dial-peer configuration to forward an incoming call to an unused port.
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Setting up the Dial Peer Configuration to Forward an Incoming Call to an Unused Port
Perform the following steps to forward an incoming call to an unused port.
Verifying that Forwarding Incoming Call to Unused Port is Enabled
Perform the following steps to verify a successful configuration.
Create 2 dial-peers for phone numbers, for example, 555-1111 and 555-2222. Point both of them to port 1. Make a call to 555-1111. When the phone on port 1 rings, pick it up. Make a phone call to 555-2222. If the "forward-to-unused-port" feature is enabled, the phone on port 2 should ring. Otherwise a call-waiting tone is heard on phone 1, assuming that call-waiting feature is available.
Configuration Examples
None
Command Reference
This section describes the new and modified commands associated with this feature.
no forward-to-unused-port
Use the no forward-to unused-port EXEC command to disable the dial-peer from forwarding incoming calls to an unused port.
no forward-to-unused-port
Syntax Description
This command has no arguments or keywords.
Default
Forwarding calls to unused ports is disabled.
Command Mode
EXEC
Usage Guidelines
There are no particular usage guidelines associated with this feature.
Example
The following example disables the dial-peer from forwarding incoming calls to an unused port.
router (config-if)# no forward-to-unused-portRelated Commands
forward-to-unused-port
dial-peer voice <number from 1 to max number of dial-peers> pots
forward-to-unused-port
Use the forward-to unused-port EXEC command to enable the dial-peer to assign an incoming call to an unused port.
forward-to-unused-port
Syntax Description
This command has no arguments or keywords.
Default
Forwarding to an unused port is enabled.
Command Mode
EXEC
Usage Guidelines
There are no particular usage guidelines associated with this feature.
Examples
The following example enables the dial-peer to forward incoming calls to an unused port.
router (config-if)# forward-to-unused-portThe following examples show various scenarios of forward-to-unused-port enabled.
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Port 1 currently has no call on it. The new call to 555-1111 is sent to port 1.
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Port 1 already has one call to 555-1111. The new call to 555-1111 is sent to port 1.
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Port 1 has one call to 555-2222 and port 2 has no calls. The new call to 555-1111 is sent to port 2.
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Port 1 has one call to 555-2222 and port 2 has one call to 555-1111. The new call to 555-1111 is sent to port 2.
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Port 1 has one call to 555-2222 and port 2 has one call to 555-3333. The new call to 555-1111 is sent to port 1.
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Port 1 has one call to 555-2222 and port 2 has two calls. The new call to 555-1111 is sent to port 1.
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Port 1 already has 2 calls. The new call to 555-1111 is sent to port 2.
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Suppose the following SPIDs and dial-peers are set up:
isdn spid1 40855511110101 5551111 5552222
dial-peer v 1 p
destination-pattern 5551111
forward-to-unused-port
port 1
dial-peer v 2 p
destination-pattern 5552222
forward-to-unused-port
port 1
A call for 555-1111 is first received. So, it is connected to port 1. Then, a call to 555-2222 is received. Since port 2 has no calls, this new call is sent to port 2. The DMS NI1 will then release the second call because it is expecting the first call to be put on hold.
Related Commands
no forward-to-unused-port
dial-peer voice <number from 1 to max number of dial-peers> pots