01-23-2009 04:12 AM - edited 03-15-2019 03:43 PM
Guys,
I have a 2811 CME gateway connect to the Telco via SIP. I have no problem with inbound and outbound calls, they work fine but I have problem with DTMF. The Telco says they are not receiving any digits from our side. I have the below dial-peer config on my side, please let me know what I need to change...
dial-peer voice 9 voip
description <<< Outbound to Telco >>>
translation-profile outgoing outgoing_digits
destination-pattern 9.T
voice-class codec 1
session protocol sipv2
session target ipv4:xxx.xxx.xxx.xxx
dtmf-relay sip-notify
no vad
!
AE-BAH-2811-01(config-dial-peer)#do sh ver
Cisco IOS Software, 2800 Software (C2800NM-SPSERVICESK9-M), Version 12.4(15)T8, RELEASE SOFTWARE (fc3)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2008 by Cisco Systems, Inc.
Compiled Mon 01-Dec-08 15:28 by prod_rel_team
ROM: System Bootstrap, Version 12.4(13r)T, RELEASE SOFTWARE (fc1)
AE-BAH-2811-01 uptime is 2 days, 19 hours, 19 minutes
System returned to ROM by Reload Command
System restarted at 19:53:18 AE Tue Jan 20 2009
System image file is "flash:c2800nm-spservicesk9-mz.124-15.T8.bin"
Cheers,
K
Solved! Go to Solution.
01-23-2009 07:06 AM
If SIP provider has changed, send the new messages log and we can confirm.
01-23-2009 04:16 AM
Hi,
first you check what's happening with "debug ccsip message" and "term mon".
Then, it might be that the ITSP doesn't support dtmf relay and they want in-band.
Generally speaking, you can have reliable dtmf in rtp even with g.729 and no jitter.
01-23-2009 04:44 AM
Hi K,
Do not use SIP notify with your SIP provider. The only place I have seen SIP notify work is CUE.
Please try replacing it with rtp-nte, as that is the standard most providers use.
hth,
nick
01-23-2009 04:47 AM
Oh, Nick put in less words what I meant to say :)
5 for him!
01-23-2009 05:03 AM
Have tried changing that to rtp-nte but no luck. The Telco gave me an IVR number to test, I dialed the digits when prompted but the IVR is not recognising my digits. The Telco phoned my from his mobile and when the call is answered he asked me to dial digits, I could see from the trace my gateway was trying to send some digits. So it must be one-way...
I am using g711ulaw codec
please advice based on this info...
Many thanks for your quick response guys...
01-23-2009 05:19 AM
Can you debug ccsip messages and paste the 200 OK that the provider sends back?
or just post the ccsip messages log.
-nick
01-23-2009 05:37 AM
01-23-2009 05:45 AM
Hi Kiran,
Try removing all of your DTMF options. Your provider doesn't appear to be supporting any OOB DTMF, so you will need to send it in-band.
hth,
nick
01-23-2009 05:53 AM
hi nick,
I have removed all dtmf options on my side, but still no luck.
dial-peer voice 9 voip
description <<< Outbound to Telco >>>
translation-profile outgoing outgoing_digits
destination-pattern 9.T
voice-class codec 1
session protocol sipv2
session target ipv4:11.11.111.1
no vad
!
01-23-2009 06:01 AM
Try making the call as g.711 ?
01-23-2009 06:08 AM
Hi Kiran,
You may need to configure a transcoder on CME for it to support putting in-band digits in.
!
voice-card 0
dspfarm
dsp services dspfarm
!
sccp ccm 10.1.103.76 identifier 1 version 4.1
sccp local interface FastEthernet0/0
!
sccp ccm group 1
associate ccm 1 priority 1
associate profile 1 register mydsps
!
dspfarm profile 1 transcode
codec g711ulaw
maximum sessions 4
associate application SCCP
no shutdown
!
sccp
!
telephony-service
sdspfarm units 1
sdspfarm transcode sessions 4
sdspfarm tag 1 mydsps
That's a pretty close config to what you'll need.
hth,
nick
01-23-2009 06:26 AM
And again!
01-23-2009 06:29 AM
ahhhaaa...dsp's....let me check with the guy who has installed this router if it has got any dsp's...
how do i check if the voice router has dsp's?
01-23-2009 06:31 AM
show diag, or inability to configure.
01-23-2009 06:33 AM
I am not able to reach the guy who installed the router, but I suspect there are no dsp's as I can see there there is a FXS card on the router but no voice-port in the config.
Quesion: if the router doesn't have dsp's, does it still support DTMF?
AE-BAH-2811-01#sh diag
Slot 0:
C2811 Motherboard with 2FE and integrated VPN Port adapter, 2 ports
Port adapter is analyzed
Port adapter insertion time unknown
EEPROM contents at hardware discovery:
PCB Serial Number : FOC1249117X
Hardware Revision : 1.0
Top Assy. Part Number : 800-26920-05
Board Revision : A0
Deviation Number : 0
Fab Version : 04
RMA Test History : 00
RMA Number : 0-0-0-0
RMA History : 00
Processor type : 87
Hardware date code : 20081203
Chassis Serial Number : FCZ125170XU
Chassis MAC Address : 0021.a054.53c8
MAC Address block size : 24
CLEI Code : COMWL10CRA
Product (FRU) Number : CISCO2811
Part Number : 73-10258-05
Version Identifier : V06
EEPROM format version 4
EEPROM contents (hex):
0x00: 04 FF C1 8B 46 4F 43 31 32 34 39 31 31 37 58 40
0x10: 03 E7 41 01 00 C0 46 03 20 00 69 28 05 42 41 30
0x20: 88 00 00 00 00 02 04 03 00 81 00 00 00 00 04 00
0x30: 09 87 83 01 32 6A 33 C2 8B 46 43 5A 31 32 35 31
0x40: 37 30 58 55 C3 06 00 21 A0 54 53 C8 43 00 18 C6
0x50: 8A 43 4F 4D 57 4C 31 30 43 52 41 CB 8F 43 49 53
0x60: 43 4F 32 38 31 31 20 20 20 20 20 20 82 49 28 12
0x70: 05 89 56 30 36 20 D9 02 40 C1 FF FF FF FF FF FF
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