IP2IP Gateway Transcoding Problem

I have a test IP to IP Gateway on 2811 with PVDM2-16 DSPs.
The software is c2800nm-ipvoice_ivs-mz version 12.3(11)T7.
Accortding to the documentation it should be able to do transcoding between inbound
and ourbound call legs (Transcoding G.711-G.729). However, the configuration guide points to
“Configuring Enhanced Conferencing and Transcoding for Voice Gateway Routers” chapter
of the Cisco CallManager and Cisco IOS Interoperability Guide. This configuration is for
CallManager transcoders. But I need the gateway to do transcoidng and do so with NO need
for CallManager. The gatway is not registered in gatekeeper also. It should be standalone
and make static routing of h323 calls between endpoints.
I've searched in the documentation but I did not find any configurations
that I can use. I made a lot of tests with diferents configurations but when there is no match
in codec betweend in and out legs (with slowstart) the debug says:
*Aug 18 11:10:03.030: //2546/3AD381928396/H323/cch323_prepare_preferred_codec_list: Check the filter: Not a single match
*Aug 18 11:10:03.030: //2546/3AD381928396/H323/cch323_peer_caps_ind_common: No Matching Codec after filtering. Hence try to find xcoder
When faststart is enabled the two call legs have different codecs in " show call history " but I here strange sounds
which means that there is no proper ( or no at all) transocding in the gateway but the endpints try to decode the incorect codec.
So I don't know if this is some problem in this recent version of IOS or I have to make some reconfigurations or even change the DSPs.
Or may be it's not (yet) possible to to this kind of transcoding and I misunderstood the features description in the docs?
Any ideas are welcome!

I could go out-of-topic, but the best thing (with a reasonable price) I have seen to do codec translation is the MERA MVTS softswitch.
Asterisk PBX can do it as well, but it need licenses for the G729 codec and its H323 support is crappy.

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  • Gateway Power Problem

    I have a Gateway MX8711 laptop that all of a sudden quit working. It was working normally, plugged into the wall with battery installed. There was no indication of a problem. Now I have no power, I press the on button and all I get is a red light on the front of the unit that blinks 3 times and goes out. I have tried taking the battery out and just running on the power cord but don,t even get the light to blink. Any thoughts would be appreciated

    Sounds like the power supply has gone bad. the blinking red lights usually indicate a discharged battery. You can contact the manufacturer for a replacement or if you purchased it at best buy with a BTPP your local store may eb able to order one for you.
    J
    Any advice given on this forum is strictly measured against your ability to interpret that advice and in no way reflects the opinions, legality, policies or opinions of myself nor that of Best Buy.
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