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From: Pseto on 9 Sep 2006 08:52
I have an IPT network consisting of 2811 with CCME 4 - IOS ver. 12.4(9)T
and 7961 and 7911 phones. Making or receiving calls internally between
phones works and sounds good, but I have problems with calls established
using dial-peers. These calls are noisy so much that you barely hear a
person at the other end of the line, but this problem is pertinent only to
calls involving 7911 phones. Calls with 7961 have good quality sound even
for calls trough dial-peer.
Is this some kind of codec problem or what?

Here is my config relevant for IPT:

!
voice-card 0
no dspfarm
!
!
!
voice class codec 1
codec preference 1 g711alaw
codec preference 2 g729r8
codec preference 3 clear-channel
!
dial-peer voice 1009 voip
description NACIONALNO
translation-profile outgoing VOIP-OUT
destination-pattern [2-8]......
rtp payload-type cisco-clear-channel 116
modem passthrough nse codec g711alaw
voice-class codec 1
session target ipv4:85.114.35.42
dtmf-relay h245-signal h245-alphanumeric
fax-relay ecm disable
fax protocol pass-through g711alaw
ip qos dscp af41 signaling
no vad
supplementary-service pass-through
!
!
telephony-service
load 7910 P00403020214
load 7960-7940 P00305000301
load 7961 cnu41.2-7-6-26.sbn
load 7911 apps11.1-0-0-72.sbn
max-ephones 42
max-dn 144
ip source-address 192.168.1.1 port 2000
auto assign 1 to 2
dialplan-pattern 1 9.. extension-length 2
max-conferences 8 gain -6
transfer-system full-consult
create cnf-files version-stamp 7960 Sep 06 2006 19:35:22
!
!
ephone-dn 1 dual-line
number 900
!
!
ephone-dn 2 dual-line
number 901
!
!
ephone 1
no multicast-moh
mac-address 0017.95D0.1B02
type 7961
button 1:1
!
!
!
ephone 2
no multicast-moh
mac-address 0019.0670.D3D4
type 7911
button 1:2
!
!


B.R.
Igor


From: www.BradReese.Com on 9 Sep 2006 21:23
Hi Igor,

You may wish to investigate Cisco's Voice Quality:

Recognizing and Categorizing Symptoms of Voice Quality Problems

Noise

http://www.cisco.com/en/US/tech/tk652/tk698/technologies_white_paper09186a00801545e4.shtml#topic4

Hope this helps.

Brad Reese
BradReese.Com - Cisco Jobs
http://www.bradreese.com/hot-jobs.htm
1293 Hendersonville Road, Suite 17
Asheville, North Carolina USA 28803
USA & Canada: 877-549-2680
International: 828-277-7272
Fax: 775-254-3558
AIM: R2MGrant
BradReese.Com - Cisco Resumes
http://www.bradreese.com/cisco-resumes.htm

From: jw on 9 Sep 2006 23:40
Why are you using clear channel?
Are these problem calls at 711?

"Pseto" <someone(a)someone.com> wrote in message
news:eduddn$2i0$1(a)ss408.t-com.hr...
>I have an IPT network consisting of 2811 with CCME 4 - IOS ver. 12.4(9)T
>and 7961 and 7911 phones. Making or receiving calls internally between
>phones works and sounds good, but I have problems with calls established
>using dial-peers. These calls are noisy so much that you barely hear a
>person at the other end of the line, but this problem is pertinent only to
>calls involving 7911 phones. Calls with 7961 have good quality sound even
>for calls trough dial-peer.
> Is this some kind of codec problem or what?
>
> Here is my config relevant for IPT:
>
> !
> voice-card 0
> no dspfarm
> !
> !
> !
> voice class codec 1
> codec preference 1 g711alaw
> codec preference 2 g729r8
> codec preference 3 clear-channel
> !
> dial-peer voice 1009 voip
> description NACIONALNO
> translation-profile outgoing VOIP-OUT
> destination-pattern [2-8]......
> rtp payload-type cisco-clear-channel 116
> modem passthrough nse codec g711alaw
> voice-class codec 1
> session target ipv4:85.114.35.42
> dtmf-relay h245-signal h245-alphanumeric
> fax-relay ecm disable
> fax protocol pass-through g711alaw
> ip qos dscp af41 signaling
> no vad
> supplementary-service pass-through
> !
> !
> telephony-service
> load 7910 P00403020214
> load 7960-7940 P00305000301
> load 7961 cnu41.2-7-6-26.sbn
> load 7911 apps11.1-0-0-72.sbn
> max-ephones 42
> max-dn 144
> ip source-address 192.168.1.1 port 2000
> auto assign 1 to 2
> dialplan-pattern 1 9.. extension-length 2
> max-conferences 8 gain -6
> transfer-system full-consult
> create cnf-files version-stamp 7960 Sep 06 2006 19:35:22
> !
> !
> ephone-dn 1 dual-line
> number 900
> !
> !
> ephone-dn 2 dual-line
> number 901
> !
> !
> ephone 1
> no multicast-moh
> mac-address 0017.95D0.1B02
> type 7961
> button 1:1
> !
> !
> !
> ephone 2
> no multicast-moh
> mac-address 0019.0670.D3D4
> type 7911
> button 1:2
> !
> !
>
>
> B.R.
> Igor
>


From: Pseto on 10 Sep 2006 17:28
cisco-clear-channel is configured by carrier stuff.
I think these calls are using 711 since it's fast Ethernet connection from
CCME router and carrier, so I suppose 711 is the negotiated codec. How can I
determine which codec my call is currently using?

B.R.
Igor


"jw" <jw(a)jasonwhelan.com> wrote in message
news:SOLMg.15775$9u.175573(a)ursa-nb00s0.nbnet.nb.ca...
> Why are you using clear channel?
> Are these problem calls at 711?
>
> "Pseto" <someone(a)someone.com> wrote in message
> news:eduddn$2i0$1(a)ss408.t-com.hr...
>>I have an IPT network consisting of 2811 with CCME 4 - IOS ver. 12.4(9)T
>>and 7961 and 7911 phones. Making or receiving calls internally between
>>phones works and sounds good, but I have problems with calls established
>>using dial-peers. These calls are noisy so much that you barely hear a
>>person at the other end of the line, but this problem is pertinent only to
>>calls involving 7911 phones. Calls with 7961 have good quality sound even
>>for calls trough dial-peer.
>> Is this some kind of codec problem or what?
>>
>> Here is my config relevant for IPT:
>>
>> !
>> voice-card 0
>> no dspfarm
>> !
>> !
>> !
>> voice class codec 1
>> codec preference 1 g711alaw
>> codec preference 2 g729r8
>> codec preference 3 clear-channel
>> !
>> dial-peer voice 1009 voip
>> description NACIONALNO
>> translation-profile outgoing VOIP-OUT
>> destination-pattern [2-8]......
>> rtp payload-type cisco-clear-channel 116
>> modem passthrough nse codec g711alaw
>> voice-class codec 1
>> session target ipv4:85.114.35.42
>> dtmf-relay h245-signal h245-alphanumeric
>> fax-relay ecm disable
>> fax protocol pass-through g711alaw
>> ip qos dscp af41 signaling
>> no vad
>> supplementary-service pass-through
>> !
>> !
>> telephony-service
>> load 7910 P00403020214
>> load 7960-7940 P00305000301
>> load 7961 cnu41.2-7-6-26.sbn
>> load 7911 apps11.1-0-0-72.sbn
>> max-ephones 42
>> max-dn 144
>> ip source-address 192.168.1.1 port 2000
>> auto assign 1 to 2
>> dialplan-pattern 1 9.. extension-length 2
>> max-conferences 8 gain -6
>> transfer-system full-consult
>> create cnf-files version-stamp 7960 Sep 06 2006 19:35:22
>> !
>> !
>> ephone-dn 1 dual-line
>> number 900
>> !
>> !
>> ephone-dn 2 dual-line
>> number 901
>> !
>> !
>> ephone 1
>> no multicast-moh
>> mac-address 0017.95D0.1B02
>> type 7961
>> button 1:1
>> !
>> !
>> !
>> ephone 2
>> no multicast-moh
>> mac-address 0019.0670.D3D4
>> type 7911
>> button 1:2
>> !
>> !
>>
>>
>> B.R.
>> Igor
>>
>
>


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