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New Member

DTMF issue ---call from PSTN

Hi

I have an issue about DTMF.  I have call manager 7 and unity connection 7, one of my H323 voice gateway using FXO port to connect a GSM module.

When call coming from FXO port, the call will divert to an IVR which configure on UC. People can hear greeting however when they Press option unity can't recieved DTMF tone.

On gateway I can see below debug:

*Sep 15 03:06:01.089: htsp_digit_ready(4): digit = 5
*Sep 15 03:06:04.009: htsp_digit_ready(4): digit = 2
*Sep 15 03:06:04.729: htsp_digit_ready(4): digit = 2
*Sep 15 03:06:05.509: htsp_digit_ready(4): digit = 3
*Sep 15 03:06:06.181: htsp_digit_ready(4): digit = 1

on Connection Remote port status Monitor:

02:38:51, New Call, CalledId=7771,  RedirectingId=7771,  Origin=16,  Reason=8,  CallGuid=89FA38373CDD47BD9C28C6DECA6BD3F5,  CallerName=,  LastRedirectingId=7771,  LastRedirectingReason=8,  PortDisplayName=PhoneSystem-1-013,[Origin=Invalid],[Reason=Invalid]
02:38:51, AttemptForward
02:38:51, State - AttemptForward.cde!Dummy
02:38:51, Event is [NULL]
02:38:51, PHTransfer
02:38:51, State - PHTransfer.cde!LoadInfo
02:38:51, Event is [TrueEvent]
02:38:51, PHGreeting
02:38:51, State - PHGreeting.cde!PlayGreeting
02:38:54, Call answered if needed
02:38:55, Playing greeting for Call Handler:  BOSS-IVR-09-2010

02:39:10, No DTMF received
02:39:10, Event is [NULL]
02:39:11, PHTransfer
02:39:11, State - PHTransfer.cde!LoadInfo
02:39:11, Answer Phone if needed
02:39:11, Event is [FalseEvent]
02:39:11, State - PHTransfer.cde!CheckPlayTransferIntro
02:39:11, Event is [FalseEvent]
02:39:11, State - PHTransfer.cde!XferCall
02:39:40, Event is [TransferFailed]
02:39:40, State - PHTransfer.cde!LeaveMsg
02:39:40, Event is [NULL]
02:39:40, Idle

my gateway configuration is

voice-port 4
supervisory disconnect dualtone mid-call
no battery-reversal
input gain 14
timeouts wait-release 1
connection plar opx 7771
description 09175709870

dial-peer voice 2201 voip
destination-pattern 77..
session target ipv4:192.168.50.5
dtmf-relay h245-alphanumeric
no vad
!

1 ACCEPTED SOLUTION

Accepted Solutions
Cisco Employee

Re: DTMF issue ---call from PSTN

Hi there,

I noticed that you have bumped up gain to a very high value on the incoming port:

voice-port 4
supervisory disconnect dualtone mid-call
no battery-reversal
input gain 14  <-----!!!!

Any particular reason for setting it so high ? Even for  low incoming volume, its set too high

where it can not only distort dtmf but also introduce audio issues such as echo.

I suspect this is distorting the DTMF and its coming in too "hot' now...

Can u set it to default and test?

voice-port X

shut

default input gain

no shut

DK

4 REPLIES
Bronze

Re: DTMF issue ---call from PSTN

Hello Victor,

On your outbound dial-peer  can you add 'dtmf-relay h245-signal h245-alphanumeric'  instead of 'dtmf-relay h245-alphanumeric'. And see if that helps.

New Member

Re: DTMF issue ---call from PSTN

Thank you jaschulz,

It looks like no change here, I wonder if relate to some timer setting on VG or CM.

GV:

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

dial-peer voice 2201 voip
destination-pattern 77..
session target ipv4:192.168.50.5
dtmf-relay h245-signal h245-alphanumeric
no vad

Connection remote port status monitor:

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

09:28:11, New Call, CalledId=7771,  RedirectingId=7771,  Origin=16,  Reason=8,  CallGuid=27166B997D584E1FA4A77C227401BE39,  CallerName=,  LastRedirectingId=7771,  LastRedirectingReason=8,  PortDisplayName=PhoneSystem-1-021,[Origin=Invalid],[Reason=Invalid]
09:28:11, AttemptForward
09:28:11, State - AttemptForward.cde!Dummy
09:28:11, Event is [NULL]
09:28:11, PHTransfer
09:28:11, State - PHTransfer.cde!LoadInfo
09:28:11, Event is [TrueEvent]
09:28:11, PHGreeting
09:28:11, State - PHGreeting.cde!PlayGreeting

09:28:14, Call answered if needed
09:28:15, Playing greeting for Call Handler:  BOSS-IVR-09-2010
09:28:30, No DTMF received
09:28:30, Event is [NULL]
09:28:30, PHTransfer
09:28:30, State - PHTransfer.cde!LoadInfo
09:28:30, Answer Phone if needed
09:28:30, Event is [FalseEvent]
09:28:30, State - PHTransfer.cde!CheckPlayTransferIntro
09:28:30, Event is [FalseEvent]
09:28:30, State - PHTransfer.cde!XferCall
09:29:00, Event is [TransferFailed]
09:29:00, State - PHTransfer.cde!LeaveMsg
09:29:00, Event is [NULL]
09:29:00, Idle
Cisco Employee

Re: DTMF issue ---call from PSTN

Hi there,

I noticed that you have bumped up gain to a very high value on the incoming port:

voice-port 4
supervisory disconnect dualtone mid-call
no battery-reversal
input gain 14  <-----!!!!

Any particular reason for setting it so high ? Even for  low incoming volume, its set too high

where it can not only distort dtmf but also introduce audio issues such as echo.

I suspect this is distorting the DTMF and its coming in too "hot' now...

Can u set it to default and test?

voice-port X

shut

default input gain

no shut

DK

New Member

Re: DTMF issue ---call from PSTN

Hi Dilip,

your are correct, I change input gain to adjust volume before,the Gateway is in Philippin and our call manger & unity connection is in Australia office.

After set it to default,now I can recieved DTMFas below...however call can't divert to internal extension for some reason. If people in Philippin dial 7771 from deskphone which reigstered to call manager in Australia, call can divert without any problem, however if call make from outside go through FXO port...it can't divert to.

any ideal about that?

thanks

02:29:32, New Call, CalledId=7771,  RedirectingId=7771,  Origin=16,  Reason=8,  CallGuid=CFEDE115E9DD42D4BED8D2896FEBA2C3,  CallerName=,  LastRedirectingId=7771,  LastRedirectingReason=8,  PortDisplayName=PhoneSystem-1-010,[Origin=Invalid],[Reason=Invalid]
02:29:32, AttemptForward
02:29:32, State - AttemptForward.cde!Dummy
02:29:32, Event is [NULL]
02:29:32, PHTransfer
02:29:32, State - PHTransfer.cde!LoadInfo
02:29:32, Event is [TrueEvent]
02:29:32, PHGreeting
02:29:32, State - PHGreeting.cde!PlayGreeting

02:29:35, Call answered if needed
02:29:35, Playing greeting for Call Handler:  BOSS-IVR-09-2010
02:29:40, DTMF received [1]

02:29:40, Event is [AlternateContactNumber]
02:29:40, State - PHGreeting.cde!PlayTransferPrompt
02:29:42, Event is [NULL]
02:29:42, State - PHGreeting.cde!TransferToACN
02:30:12, Event is [FalseEvent]
02:30:12, State - PHGreeting.cde!PlayUnableToDial
02:30:12, Event is [HangupEvent]
02:30:12, Idle

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