DTMF over H.323 trunking

[mdloser]

Hello all,

I noticed a strange behaviour about an H.323 trunk.
We call a conf. device over an H.323 trunk, usually it works (8 frem 10) but sometimes it seems that the other party does not accept DTMF's. Tipically we call from digital terminals and usually we can see the digits after the welcome message.
When it doesn't work I connot see the digits on the phone display, seems like are rejected.
Has anyone encounter this phenomenon ?
Can be a lack of resources ?

Best Regards

 

[mdloser]

I forgot the details:
TSW SP 06
<CCNBIP:BPOS=2-2-40;

DEVICE BOARD REVISION INFORMATION
DATE: 31MAR14 TIME: 22:01:48

BPOS BOARD/BRDID PRODUCT NUMBER REVISION STATUS ADD
/IND

002-2-40 IPLU ROF1375067/1 R3A
CAA 158 0040 R6C EXE APPL
CAA 158 0037 R1C EXE KERNEL
CAA 158 0038 R1G EXE ROOTFS
CAA 158 0039 R2G EXE MSP
CAA 158 0046 R1A EXE INITRD
RYS 102 770 R1A EXE BOOT
RYS 102 777 R2B EXE FPGA
PCB CODE 2 EXE HW CODE 0
Tue Nov 24 2009 EXE 18:12:41

END
<CNBIP:BPOS=2-3-30;

DEVICE BOARD REVISION INFORMATION
DATE: 31MAR14 TIME: 22:02:02

BPOS BOARD/BRDID PRODUCT NUMBER REVISION STATUS ADD
/IND

002-3-30 IPLU ROF1375067/1 R3A
CAA 158 0040 R7E EXE APPL
CAA 158 0037 R1C EXE KERNEL
CAA 158 0038 R1G EXE ROOTFS
CAA 158 0039 R2G EXE MSP
CAA 158 0046 R1A EXE INITRD
RYS 102 770 R1A EXE BOOT
RYS 102 777 R2B EXE FPGA
PCB CODE 2 EXE HW CODE 0
Thu Aug 25 2011 EXE 14:49:59

END

Best Regards