Cisco Auto Attendant not working over WAN

[kvc]

Hi,

I have installed AutoAttendant in Call Manager 3.3 release. I have two regions one is default and the other is remote. I am using G 711 Codec for Default as well as remote region. But for the inter-region calls i am using G 729. When i call the Auto Attendant number from Default region i am able to get the welcome greeting from the Auto Attendant.

But when i am dialing from the remote region i am getting a busy signal.

Can some one help me out on this

Thanks in advance

[kamalnaths]

Hi,

You need the transcoder to convert the codec format from g729 to g711. may be you use for vg200 or E1 dsp resource to do the transcoding function

regards,

kamalnath

[paul.harrison]

Auto Attendant is based on IP-IVR which only supports G.711 calls. If you are using G.729 then you need a transcoder to convert the call to G.711 first before AA.

A bit poor on Cisco as they've shipped this for over 2 years now and not fixed it (it really should work as G.729) especially as Unity supports g.729 out the box now. I guess it's because it's only a freebie and they'd like you to buy more hardware to get it to do everything you want.

Paul

[#4]

Hi Paul,

I was trying to do the exact thing you mentioned in this post.

1.Is the transcoder a separate hardware or can we install it as a software in the CCM itself?

2.Do you have any document which list a step by step procedure for configuring the transcoder with IVR for a G729 to G711 codec conversion?

thanks,

hemant.

[rzanett]

As mentioned in a previous post, you can transcode with hardware - which is definitely the preferred method and you will want to do this at the head-end... that is take G729 to G711. However, as an interim, you can use the software resources on Callmanager.