04-06-2015 06:47 AM - edited 03-17-2019 02:33 AM
I am using Cisco 2800, call slow is PSTN >> Cisco 2800 (H323) >> Call Manage 4.1
dspfarm profile 3 mtp
codec g729r8
maximum sessions software 50
associate application SCCP
IOS Version 12.4(13r)T,
Call is getting disconnect when we checked the option MTP required on call manager 4.1,
04-06-2015 08:12 PM
What's the reason for invoking the MTP?
What's the region setting between
GW---MTP
MTP---Phone
Are you sure that only the IOS mtp is getting invoked? verify the MRGL/MRG settings once.
-Atul
04-07-2015 07:25 AM
We require MTP to be invoked as from Call Manager 4.1 we have trunk to voice mail server i.e OCS that will not work is MTP is not checked.
Region setting between GW and Call manager is G711
MTP is on same IOS GW
04-07-2015 07:41 AM
What do you mean by Region setting between the GW and Call manager??
I assume the OCS is connected via a SIP trunk.
Check what's the region for the H323 gw, SIP trunk and MTP on the respective device pools.
Then go to the region config and verify the relationship
H323 GW reg ---- with ---- MTP reg
MTP reg ---- with --- SIP trunk reg
Your MTP is configured for g729 codec as per the dspfarm profile you mentioned earlier.
If your region settings are G711 throughout then you need to change the MTP to use g711.
If you want to use G729 then make sure region settings are also appropriately set and also the GW and OCS are capable of using G729. On the GW it would be the dial-peer setting and OCS must also be having some configurable setting I assume.
-Atul
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