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DTMF tones after dial for fax routing

ddriver
Level 1
Level 1

On older PBX systems you could set the router up to send dtmf tones to a fax server for fax cards that didn't support DID. This was called "after-dial" signaling. It basically told the fax what the DID was without needing a DID enabled fax card.

Is there a way to set this up with a 2610XM router with an FXS/DID card?

Incomming faxes are currently hair-pinned back to the router and it's FXS port using a phone with a fake MAC address that forwards to a rout pattern pointing back to the router.

Any help is appreciated.

Thanks!

3 Replies 3

ebreniz
Level 6
Level 6

I think "supervisory disconnect dualtone pre-connect " can be a command like that.

For more details refer,

http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122limit/122x/122xt/122xt_2/ft_hdanm.htm#1063466

It looks like that command is for FXO ports. I have a fax server plugged into a four port fxs/did fard.

Here is the information on the command:

supervisory disconnect dualtone voice-class

To assign a previously configured voice class for Foreign Exchange Office (FXO) supervisory disconnect tone to a voice port, use the supervisory disconnect dualtone voice-class command in voice port configuration mode. To remove a voice class from a voice-port, use the no form of this command.

supervisory disconnect dualtone {mid-call | pre-connect} voice-class tag

no supervisory disconnect dualtone voice-class tag

Syntax Description

mid-call

Configures tone detection to operate throughout the duration of the call.

pre-connect

Configures tone detection to operate during call setup and to stop when the called telephone goes off-hook.

tag

A unique identification number assigned to one voice class. The tag number maps to the tag number assigned using the voice class dualtone global configuration command. The range is from 1 to 10,000.

Defaults

No voice class is assigned to a voice port.

Command Modes

Voice-port configuration

Command History

Release Modification

12.1(3)T

This command was introduced on the Cisco 2600, 3600, and MC3810 series.

Usage Guidelines

You can apply an FXO supervisory disconnect tone voice class to multiple voice ports. You can assign only one FXO supervisory disconnect tone voice class to a voice port. If a second voice class is assigned to a voice port, the second voice class replaces the one previously assigned. You cannot assign separate FXO supervisory disconnect tone commands directly to the voice port.

This feature is applicable to analog FXO voice ports with loop-start signaling.

Examples

The following example assigns voice class 70 to FXO voice port 1/5 of a Cisco MC3810 series concentrator and specifies tone detection during the entire call duration:

voice-port 1/5

no echo-cancel enable

supervisory disconnect dualtone mid-call voice-class 70

The following example assigns voice class 80 to FXO voice port 0/1/1 of a Cisco 3600 series router and specifies tone detection only during call setup:

voice-port 0/1/1

no echo-cancel enable

supervisory disconnect dualtone pre-connect voice-class 80

Related Commands

Command Description

channel-group

Defines the time slots of each T1 or E1 circuit.

mode

Sets the mode of the T1/E1 controller and enters specific configuration commands for each mode type in VoATM.

voice class dualtone

Creates a voice class for FXO tone detection parameters.

We made fxs ports H323 gateway and set 'forward digits all' on the ports.

Mary Beth