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New Member

using g711alaw instead of g711ulaw

hi,

my VOIP ISP provides codec g711alaw,

but we are facing some problem some calls are not going to the autoattend , it disconnects.

but if we configure direct line the call comes to the ip phone.

attached my config, if any one can check and clarify what is wrong with me config              

Everyone's tags (1)
3 ACCEPTED SOLUTIONS

Accepted Solutions
Cisco Employee

Re:using g711alaw instead of g711ulaw

CTI application does not support alaw just G711U. You will need to transcode every call to voicemail system if the ITSP just send you alaw in SDP.

using g711alaw instead of g711ulaw

Hello Edwin,

Please take a look at the following document it will help you with transcoding setup.

http://www.cisco.com/en/US/docs/voice_ip_comm/cucme/admin/configuration/guide/cmetrnsc.html

HTH,

Alex

*Please rate helpfull posts

VIP Super Bronze

using g711alaw instead of g711ulaw

Hi edwin,

With this setup, Your cme router should invoke a xcoder when calls go to cue. However your xcoder is not correctly configured.

sccp ccm group 1

associate ccm 1 priority 1

associate profile 2 register hwxcode---------------your profile here is numbered "2"

associate profile 1 register hwconf

!

dspfarm profile 1 transcode  ----------------------here your profile for xcoder is "1", pls change it to "2"

codec g711ulaw

codec g711alaw

codec g729ar8

codec g729abr8

codec g729r8

codec g729br8

maximum sessions 10

associate application SCCP

shutdown----------------------------------------your dspfarm profile is shutdown, please enable it.

sccp ccm group 1

On your telephony-service you need to configure number of xcoder sessions..

telephony-service

sdspfarm transcode sessions 4 (or whatever number you want and your router can support)

Once you are done, shut and re-start sccp. on your router do  "no sccp" and then after a few sec, do  "sccp"

then check that your xcoder is registered by issueing the command,

"show sdspfarm units" Once your xcoder is registered do another test call and please send a debug ccsip messages.

sh sd

Please rate all useful posts

"There is a wideness in God's mercy Like the wideness of the sea.There's a kindness in His justice Which is more than liberty"

Please rate all useful posts "The essence of christianity is not the enthronement but the obliteration of self --William Barclay"
7 REPLIES
VIP Super Bronze

using g711alaw instead of g711ulaw

Hi,

First of all you cant use voice-class codec 1 to your CUE AA. Cue only supports G711ulaw. So pls change the dial-peer to AA to use G711u.

Secondly can you send debug ccsip messages (pls put in a text file and attach here)

Please rate useful posts

"For the love of God is broader than the measure of man's mind And the heart of the Eternal is most wonderfully kind"

Please rate all useful posts "The essence of christianity is not the enthronement but the obliteration of self --William Barclay"
Bronze

Re: using g711alaw instead of g711ulaw

Hi,

Are you facing silence when you call into cue? Or just a disconnect?

We are facing silence. our provider delivers g711alaw and cue only supports g711ulaw. We use cucm to connect cue. In our situation cue is not negotiating the codec correctly and is accepting alaw while sending ulaw. Even though we have xcoders, mtp's in place (cucm is invoking a mtp instead of a xcoder) This is supposed to be fixed in cue version 8.0(5) and the yet to be released 8.6(4).

Regards,

Erik

Sent from Cisco Technical Support iPad App

Cisco Employee

Re:using g711alaw instead of g711ulaw

CTI application does not support alaw just G711U. You will need to transcode every call to voicemail system if the ITSP just send you alaw in SDP.

New Member

using g711alaw instead of g711ulaw

hi,

how we can transcode the call to voicemail

using g711alaw instead of g711ulaw

Hello Edwin,

Please take a look at the following document it will help you with transcoding setup.

http://www.cisco.com/en/US/docs/voice_ip_comm/cucme/admin/configuration/guide/cmetrnsc.html

HTH,

Alex

*Please rate helpfull posts

VIP Super Bronze

using g711alaw instead of g711ulaw

Hi edwin,

With this setup, Your cme router should invoke a xcoder when calls go to cue. However your xcoder is not correctly configured.

sccp ccm group 1

associate ccm 1 priority 1

associate profile 2 register hwxcode---------------your profile here is numbered "2"

associate profile 1 register hwconf

!

dspfarm profile 1 transcode  ----------------------here your profile for xcoder is "1", pls change it to "2"

codec g711ulaw

codec g711alaw

codec g729ar8

codec g729abr8

codec g729r8

codec g729br8

maximum sessions 10

associate application SCCP

shutdown----------------------------------------your dspfarm profile is shutdown, please enable it.

sccp ccm group 1

On your telephony-service you need to configure number of xcoder sessions..

telephony-service

sdspfarm transcode sessions 4 (or whatever number you want and your router can support)

Once you are done, shut and re-start sccp. on your router do  "no sccp" and then after a few sec, do  "sccp"

then check that your xcoder is registered by issueing the command,

"show sdspfarm units" Once your xcoder is registered do another test call and please send a debug ccsip messages.

sh sd

Please rate all useful posts

"There is a wideness in God's mercy Like the wideness of the sea.There's a kindness in His justice Which is more than liberty"

Please rate all useful posts "The essence of christianity is not the enthronement but the obliteration of self --William Barclay"
New Member

using g711alaw instead of g711ulaw

Thanks to all for your support

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