08-19-2009 07:07 AM - edited 03-15-2019 07:25 PM
Hi,
I've a H.323 network using GKs and some H323 GWs. Each GW has a PBX connected with E1 QSIG, and there are dial-peers to intercommunicate phones from the PBX, and Toll bypass calls.
GKs are 28xx with IOS 12.4T. The GWs are 26xx with IOS 12.2, and we're replacing them with 28xx with 12.4T.
Yesterday we've replaced a 2610 (connected to PBX A), and the only issue was related to toll bypass calls.
When a phone on PBX A makes a long distance call to local number of PBX B, the receiver phone rings, but when off hook, we receive a disconnect (16, normal call clearing) that drops the call.
It seems a codec issue, but when 2610 was connected the toll bypass call used g729r8, and on debugs I've checked on both GWs that the same codec was in use when the call drops.
This issue doesn't appear on calls between phones from PBX A and B. And dial peers are similar.
I've tried using voice class codec (g711 and g729), not using GKs to make toll bypass calls, traslations, etc.
GW A config:
voice class codec 9
codec preference 1 g729r8
codec preference 2 g729br8
codec preference 3 g711alaw
codec preference 4 g711ulaw
voice translation-rule 1
rule 1 /^91812\(.*\)/ /9\1/
voice translation-profile hacia-bosquesur
translate called 1
dial-peer voice 1812 voip
translation-profile outgoing hacia-bosquesur
preference 1
service session
destination-pattern 91812.......
voice-class codec 9
session target ras
dtmf-relay h245-alphanumeric
no vad
GW B config:
dial-peer voice 9 pots
destination-pattern 9.......
progress_ind alert enable 8
direct-inward-dial
port 3/0:15
prefix 9
Any idea will be appeciated.
TIA
Andres Pasten
Adexus S.A.
08-21-2009 02:43 PM
Andres,
I am wandering about one thing (which may be obvious, and thus overlooked). What DSPs are you using, and how have they been config'ed on the 28XX. I believe, on the 26XX, the DSPs were on a daughter card (or expansion card). ON the 28XX they can be placed directly on the board.
Here is the config, relevant to this topic, from our 28XX
dspfarm
dsp services dspfarm
snmp-server enable traps dsp card-status
dspfarm profile 10 conference
codec g711ulaw
codec g729br8
codec g729ar8
codec g729abr8
codec g729r8
maximum sessions 1
associate application SCCP
I hope this helps.
08-23-2009 04:49 PM
Hi,
Thanks for your post.
We`ve moved the NM-HDV-E1 from the 26xx to the 28xx, so the DSP in both configs are the same.
That dspfarm configuration is to provide HW resources to conferences, or for any dial-peer?
TIA
Andres Pasten
Adexus S.A.
08-24-2009 10:37 AM
I believe the 1st 2 lines are essential to voice services, in the same way that you cannot enable mgcp or h323 without the command to turn those services on. The remainder of the config is applicable to Conferences.
-Ronnie
09-04-2009 06:50 AM
Ron,
I've solved the issue with this advice:
http://forums.cisco.com/eforum/servlet/NetProf?page=netprof&forum=Unified%20Communications%20and%20Video&topic=IP%20Telephony&topicID=.ee6c829&CommCmd=MB%3Fcmd%3Dpass_through%26location%3Doutline%40^1%40%40.2cd40c7d/2#selected_message
It was only an IOS issue.
Thanks for your support anyway.
Andres Pasten
Adexus S.A.
Find answers to your questions by entering keywords or phrases in the Search bar above. New here? Use these resources to familiarize yourself with the community: