08-19-2014 10:48 PM - edited 03-16-2019 11:48 PM
Dear All,
I have Cisco Voice router 2801 with Two FXO ports and we have terminated two PSTN lines over it. Suddently, we are facing some DTMF detection issues.
Once the Router give us the dial Tone and we tried to dialed the desired numbers but unfortunately some times router recived the wrong digits. Successful ratio is 30% means 3 calls are passing correctly out of 10.
For Example:
Dailed: 923332631696
Recived Sample 1: 92233326631116
Recived Sample 2: 9223266
Please help me to sort out this issue. Thanks.
Note: its works perfectly since couple of years.
08-19-2014 11:31 PM
You are using ip phone or analog phone to dial and are you facing this issue from all phones or any specific phone model ?
I have seen this issue when dialing from analog phone due to different pulse/tone settings on phone.
Suresh
08-19-2014 11:49 PM
Suresh, Thanks for your Response.
I am using analog phone in order to reach the router. Below are the call flow
Analog Phone ---> FXO (PSTN Line) ----> Voice Dial Peer VOIP (SIP)
Please let me know if you any settings. I have tried to change dial type to pulse from DTMF but not much improvement.
Thanks.
08-20-2014 03:37 AM
Can you test dialing on speaker mode or plz test with other/new analog phone.
Suresh
08-20-2014 03:57 AM
Already tested via different phones even via different country.
I suspected the issue related to Telco side. It seems they are sending DTMF at very high Decibel level.
If anyone face the same issue, please share the experience.
Thanks a lot!
08-20-2014 04:07 AM
Can you share the dial-peer configs?
Thankyou
PC
08-20-2014 04:16 AM
Please find the below requested info
//
dial-peer voice 111 voip
huntstop
destination-pattern 9T
session protocol sipv2
session target ipv4:X.X.X.X
dtmf-relay rtp-nte
!
voice-port 0/3/1
dial-type pulse
timeouts call-disconnect 0
timeouts ringing 30
//
08-20-2014 04:23 AM
Instead of " rtp-nte " can you try " sip-notify " and reload the router post wr memory
Thankyou
PC
08-20-2014 05:01 AM
I tried this but obseverd same behaviour. like below
Dailed: 923332631696
Recived Sample 1: 2333631696
Recived Sample 2: 923332631696 - correct
Recived Sample 3: 923332631696 - correct
Recived Sample 4: 9233631696
08-20-2014 07:14 AM
Try putting connection plar opx 923332631696 under the voice port.
If you dont have any POTS dial-peer pointing to FXO port , you need it to make oubound call from that FXO port.
08-21-2014 11:02 PM
Thanks Manish
This workaround already implemented but i want to sort out the DTMF issues. we have to dial several different numbers on daily basis.
Thanks..
08-22-2014 03:04 AM
Can you attach debug vpm signal and debug voice ccapi inout after enabling caller id on fxo port.
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