DTMF issue on SIP trunk

[shaikh ibrahim]

                   Hi there ,

                                I am facing issue on outbound calls where ever i make call to any Main number but it is not accepting extension numbers. i think is a DTMF

issue but which command i will use under dial-peer voice dial -peer.

CUCM --- VG --SIP---Service provider

dial-peer voice 20 voip

  translation-profile outgoing OUT-SIP

destination-pattern .T

voice-class codec 1

session protocol sipv2

session target ipv4:10.200.7.157:5060

session transport udp

dtmf-relay rtp-nte

no vad

Any help will be highly appreciated

Regards,

Shib

[Tony Cilli Jr]

Don't be afraid to actually setup several different DTMF-relays under one statement, to get the DTMF Tones working on the SIP trunk to my provider, here's an example of my outbound dial-peer.

dial-peer voice 100 voip

description Outbound Voice SIP Calls

destination-pattern .T

session protocol sipv2

session target sip-server

voice-class codec 1 

voice-class sip early-offer forced

voice-class sip profiles 100

dtmf-relay rtp-nte cisco-rtp sip-kpml sip-notify

no vad

HTH,  Tony

Please rate this if it helps.

[shaikh ibrahim]

I tried but same ay help will be higly appreciated.

[Leonardo Santana]

Verify with the SIP ITSP what type of DTMF they support:

• Notify <---> Notify since 12.4(4)T

• RFC2833 <---> Notify since 12.4(4)T

• Notify <---> RFC2833 since 12.4(4)T

• Inband G711 <---> since 12.4(11)T [Requires Transcoder]

Take a look on this doc:

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

Regards

Leonardo Santana

[gossa1973]

I have similar problem

We have SIP trunk with CME 8.6 and 10 SCCP (7960,7975) phones, also UM with Exchange 2010 , everything work perfectly until we added two SIP client phones.

SIP client phones 9971 and 7906 have issue with sending DTMF signals.

From both SIP phones I can call and receive calls but when I call some number with auto attended or voice mail on internal or external number I have problem to choose options ,

I hear DTMF tones but destination party does not.

I can leave message, which means that I have two way communication.

I notice this trying to access ours voice mailbox on Exchange 2010 I can make call but no DTMF command are recognized I cannot enter PIN for mailbox I hear DTMF tones but UM does not

everything is normal with SCCP clients phones , problem localized on SIP clients phones.

My configurations for SIP and those two phones are

voice service voip

gcid

no cti shutdown

callmonitor

allow-connections h323 to h323

allow-connections h323 to sip

allow-connections sip to h323

allow-connections sip to sip

supplementary-service h450.12

fax protocol t38 version 0 ls-redundancy 0 hs-redundancy 0 fallback none

h323

call start slow

modem passthrough nse codec g711alaw

sip

header-passing

registrar server expires max 1200 min 60

early-offer forced

midcall-signaling passthru

voice register dn 1

number 101

call-forward b2bua noan 555 timeout 20

allow watch

name BOSS1

no-reg

label 101 BOSS1

voice register dn 10

number 110

allow watch

name SHOP

no-reg

label 110 SHOP

voice register pool 1

id mac 04C5.A4B0.3B0D

type 9971

number 1 dn 1

dtmf-relay sip-notify

username xxxx password zzzz

codec g711alaw

camera

video

voice register pool 10

id mac 001E.7A25.EEA4

type 7906

number 1 dn 10

dtmf-relay sip-notify

username xxxx password zzzzz

codec g711alaw

Configuration of voicemail dial-peer

dial-peer voice 555 voip

description ** Exchange Unified Messaging **

destination-pattern 555

session protocol sipv2

session target ipv4:192.168.2.203:5065

session transport tcp

dtmf-relay rtp-nte

codec g711alaw

fax rate disable

fax protocol pass-through g711alaw

no vad

Any idea what is wrong or do you how can I troubleshot the problem