09-01-2008 11:10 PM - edited 03-15-2019 12:59 PM
Hi!
I have a strange problem with my Erisson MD 110 and CCM 4.3 & 2811 (MGCP). MD110 connected to 2811 (E1 QSIG), 2811 registered as MGCP gateway. I find out, that no voice in both direction, when calls occupied timeslots after 17.
sh voice call summary
PORT CODEC VAD VTSP STATE VPM STATE
============== ========= === ==================== ======================
0/0/0:15.1 - - -
0/0/0:15.2 - - -
0/0/0:15.3 - - -
0/0/0:15.4 - - -
0/0/0:15.5 - - -
................................
after
0/0/0:15.17 - - -
0/0/0:15.18 - - -
no voice in both direction
2811 config:
!
controller E1 0/0/0
pri-group timeslots 1-31 service mgcp
!
!
interface Serial0/0/0:15
no ip address
encapsulation hdlc
no logging event link-status
isdn switch-type primary-qsig
isdn incoming-voice voice
isdn bind-l3 ccm-manager
isdn send-alerting
isdn contiguous-bchan
isdn bchan-number-order ascending
isdn sending-complete
no cdp enable
!
!
mgcp
mgcp call-agent CCM1 2427 service-type mgcp version 0.1
mgcp dtmf-relay voip codec all mode out-of-band
mgcp rtp unreachable timeout 1000 action notify
mgcp modem passthrough voip mode nse
mgcp package-capability rtp-package
no mgcp package-capability res-package
mgcp package-capability sst-package
no mgcp package-capability fxr-package
mgcp package-capability pre-package
no mgcp timer receive-rtcp
mgcp sdp simple
mgcp fax t38 inhibit
no mgcp explicit hookstate
mgcp rtp payload-type g726r16 static
!
mgcp profile default
!
Somebody know how to fix problem with other 17-31 timeslots?
09-02-2008 01:32 AM
Is the MD configured for all 30 channels, can teH GW support 30. Also I see you have isdn contiguous-bchan set maybe remove it
09-02-2008 01:34 AM
Hi,
You can do a sh diag ...this will telly ou how many dsps you have. May be you have PFDM2-16, which can only support 16 channels..
09-02-2008 01:54 AM
It is not a problem with dsp - I have a PVDM2-32. If I didn't have a enought DSP, I couldn't configure
pri-group timeslots 1-31
May be somebody confugured MD 110 to operate with cisco and can help to check MD 110 config?
09-02-2008 02:13 AM
To check the configuration of the MD in that how many have tehy configured , you could if they have configured correctly ie. CCM uses top down, MD bottom down
Use DEBUG Q931 and ask the MD user to make a call = what does it come on - channel 31 ? ch 1 If it is ch 31, 30 , 29 etc then I guess the MD guy have configured it correctly with the correct number of channels
09-02-2008 02:25 AM
Every call from MD to ehpone occupied timeslots top-down (1,2,3,...20,21,22,...30,31,1). Every call from ephone to MD occupied timeslots top-down (1,2,3). I find out, that no diffirence in debug isdn q931 between calls from MD to ephones from 1 and 21 timeslots, except no voice in last case.
09-02-2008 03:11 AM
It is not a problem with dsp - I have a PVDM2-32. If I didn't have a enought DSP, I couldn't configure
pri-group timeslots 1-31
May be somebody confugured MD 110 to operate with cisco and can help to check MD 110 config?
05-05-2009 06:21 AM
Hello Team,
Does anybody got the resolution for this. I am also experiencing the same
thanks
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