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dtmf on sip trunk to voip company

I have a sip trunk to magnet broadband and dtmf is not working outbound or inbound.

anyone ideas anyone

13 REPLIES
VIP Super Bronze

Re: dtmf on sip trunk to voip company

Chris,

Can you post the config on your voip dial-peer that connects to your service provider here

Please rate all useful posts "The essence of christianity is not the enthronement but the obliteration of self --William Barclay"
New Member

Re: dtmf on sip trunk to voip company

see below.

also tried other dtmr relay protocols as well

they said it was rfc2833 which is rtp-nte

dial-peer voice 200 voip

description SIP TRUNK

translation-profile incoming prefix

translation-profile outgoing out

preference 7

destination-pattern .T

voice-class codec 1

session protocol sipv2

session target dns:voip.magnetnetworks.com:5060

incoming called-number .

dtmf-relay rtp-nte

no vad

VIP Super Bronze

Re: dtmf on sip trunk to voip company

Ok..

On your Sip trunk, you need to assign it to a MRGL that has a software MTP in its MRG.

Is this CCM or CCME...The above is for CCM, if its CCME, then you will need hardware MTP

Please rate all useful posts "The essence of christianity is not the enthronement but the obliteration of self --William Barclay"
Hall of Fame Super Silver

Re: dtmf on sip trunk to voip company

You will require an MTP for DTMF with SIP, simply create MTPs and on the SIP trunk check the "require MTP" checkbox.

Chris

New Member

Re: dtmf on sip trunk to voip company

do you have a config for this?

New Member

Re: dtmf on sip trunk to voip company

this is call manager express

Silver

Re: dtmf on sip trunk to voip company

Here is a link to a tech note that discusses CME and dtmf relay support - they talk about sip and sccp phones, but they also have a SIP trunk in their sample config, with comments:

http://www.cisco.com/en/US/products/sw/voicesw/ps4625/products_configuration_example09186a00808f9666.shtml

Mary Beth

New Member

Re: dtmf on sip trunk to voip company

do you have a config template for this so i can look at it please?

New Member

Re: dtmf on sip trunk to voip company

still did not work.

has anyone got dtmf working over sip trunks to a voip company?

Re: dtmf on sip trunk to voip company

please post your ENTIRE conifg and sh ver. Alos sh sccp all

Chad

New Member

Re: dtmf on sip trunk to voip company

see below

#sh ver

Cisco IOS Software, 2800 Software (C2800NM-SPSERVICESK9-M), Version 12.4(9)T7, R

ELEASE SOFTWARE (fc3)

Technical Support: http://www.cisco.com/techsupport

Copyright (c) 1986-2008 by Cisco Systems, Inc.

Compiled Thu 10-Jan-08 16:35 by prod_rel_team

ROM: System Bootstrap, Version 12.4(13r)T, RELEASE SOFTWARE (fc1)

cma-cgm uptime is 22 hours, 46 minutes

System returned to ROM by power-on

System restarted at 14:17:17 GMT Wed Aug 13 2008

System image file is "flash:c2800nm-spservicesk9-mz.124-9.T7.bin"

This product contains cryptographic features and is subject to United

States and local country laws governing import, export, transfer and

use. Delivery of Cisco cryptographic products does not imply

third-party authority to import, export, distribute or use encryption.

Importers, exporters, distributors and users are responsible for

compliance with U.S. and local country laws. By using this product you

agree to comply with applicable laws and regulations. If you are unable

to comply with U.S. and local laws, return this product immediately.

A summary of U.S. laws governing Cisco cryptographic products may be found at:

http://www.cisco.com/wwl/export/crypto/tool/stqrg.html

If you require further assistance please contact us by sending email to

export@cisco.com.

Cisco 2811 (revision 53.51) with 249856K/12288K bytes of memory.

Processor board ID FCZ122970FY

2 FastEthernet interfaces

1 terminal line

1 Channelized (E1 or T1)/PRI port

4 Voice FXS interfaces

1 cisco service engine(s)

DRAM configuration is 64 bits wide with parity enabled.

239K bytes of non-volatile configuration memory.

125440K bytes of ATA CompactFlash (Read/Write)

Configuration register is 0x4102

---------------------------------

sh sccp all

SCCP Admin State: DOWN

Gateway IP Address: 0.0.0.0, Port Number: 0

IP Precedence: 5

User Masked Codec list: None

There is no CCM group configured.

Total number of active session(s) 0, and connection(s) 0

Total number of active session(s) 0, and connection(s) 0

Total number of active session(s) 0, connection(s) 0, and callegs 0

SCCP Application Service(s) Statistics Summary:

Total Conferencing Sessions: 0, Connections: 0

Total Transcoding Sessions: 0, Connections: 0

Total MTP Sessions: 0, Connections: 0

Total ALG-Phone Sessions: 0, Connections: 0

Total BRI-Phone Sessions: 0, Connections: 0

Total SCCP Sessions: 0, Connections: 0

Total active sessions 0, connections 0, rsvp sessions 0

-=----------------------------

dial-peer voice 200 voip

description SIP TRUNK

translation-profile incoming prefix

translation-profile outgoing out

destination-pattern .T

redirect ip2ip

b2bua

session protocol sipv2

session target dns:voip.magnetnetworks.com:5060

session transport udp

dtmf-relay sip-notify rtp-nte

codec g711ulaw

fax rate disable

fax protocol pass-through g711ulaw

clid network-number 016522020

!

dial-peer voice 40 voip

description *AUTOATTENDANT*

destination-pattern 016522020

b2bua

session protocol sipv2

session target ipv4:10.17.49.5

dtmf-relay sip-notify rtp-nte

codec g711ulaw

no vad

!

New Member

Re: dtmf on sip trunk to voip company

Not sure if this will help but try addig the following to your SIP dial peer

rtp payload-type cisco-codec-fax-ack 114

rtp payload-type cisco-codec-fax-ind 113

rtp payload-type nte 98

voice-class sip dtmf-relay force rtp-nte

New Member

Re: dtmf on sip trunk to voip company

wil give that a go.

do you think this could resolve a fax issue we have over the sip trunk as well. basically we can dial into the fax but not send a fax. the voice translation rule is ok as i tested this. i can see the voice call from the fax machine leave the system as well over the dial peer

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