02-01-2007 04:08 PM - edited 03-18-2019 06:53 PM
Current Version: 2.2.2 integrated with CCM 4.1.3.
I have a two CUE installations. One CUE is in the US and the second is in the UK. Everything works fine with the US CUE voicemail system but the CUE installed in the UK is not able to record messages with good quality from the outside world. Calls forwarded to voicemail made from an internal phone or from a US gateway work fine. Any call coming in from the UK gateway doesn't record with good quality. The recording is hard to hear with a lot of static sound overtop of the call. Keep in mind that the UK Gateway is a ISDN BRI Circuit that has to be setup as a g711alaw codec. In the US we use g711ulaw codec. I think there is an issue with a codec mismatch but I can't seem to resolve it. The UK CUE auto attendant prompts sound fine when calling in through the UK Gateway.
02-01-2007 04:56 PM
Hi,
I've heard of other instances where the g711a law on voip dial peer was causing the issue-- but this was for U.S. customers and changing the codec to G711u law corrected their problem with voice quality on CUE.
Could you confirm this config parameter?
Good luck.
02-01-2007 05:03 PM
Cisco TAC is currently reviewing information I send them. If I try to change the ISDN BRI Circuit to g711ulaw then phone calls have the same static issue. When it is set to a-law the phone calls are clear. The call legs to the CUE during the recording process are showing g711alaw codecs which seem to be unsupported with CUE 2.2.2 that I'm using currently. Transcoding doesn't seem to come in to play even though I have some configured on the same router.
02-01-2007 05:54 PM
The solution to my problem was changing my router from:
voice class codec 1
codec preference 1 g711alaw
codec preference 2 g729r
to
voice class codec 1
codec preference 1 g711alaw
codec preference 2 g711ulaw
codec preference 3 g729r8
This allows the call to be changed from g711alaw to g711ulaw on the fly without using any DSP transcoding resources from what I can tell.
The following is for anyone trying to solve a similar g711alaw to g711ulaw issue:
Entries needed for UK a-law ISDN BRI Circuits:
interface BRI0/0/0
no ip address
isdn switch-type basic-net3
isdn point-to-point-setup
isdn incoming-voice voice
isdn sending-complete
isdn static-tei 0
!
voice-port 0/0/0
no vad
compand-type a-law
no comfort-noise
cptone GB
timeouts interdigit 2
bearer-cap Speech
Dial Peers for voice traffic to CCM and CUE Voicemail and Auto Attendant:
dial-peer voice 500 voip
description CCM Traffic
destination-pattern X...
progress_ind setup enable 3
modem passthrough nse codec g711alaw
voice-class codec 1
voice-class h323 1
session target ipv4:10.1.10.10
dtmf-relay h245-alphanumeric
fax-relay ecm disable
fax rate disable
no vad
!
dial-peer voice 300 voip
description CUE-VM
destination-pattern 3300
session protocol sipv2
session target ipv4:10.2.10.3
dtmf-relay h245-alphanumeric
codec g711ulaw
no vad
!
dial-peer voice 301 voip
description CUE-AA
destination-pattern 3310
session protocol sipv2
session target ipv4:10.2.10.3
dtmf-relay h245-alphanumeric
codec g711ulaw
no vad
!
Hope this can help someone else in the future.
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