Calls fail with cause code 47 - No resource available

[abgromov]

Hi,

I have problems with call setup in following H323 configuration using cisco 3745 GW:

PBX-(E1,ISDN)-Gateway_C3745_IOS.12.3.3e-GK_C3725-Gateway_c3660-(E1,QSIG)-PBX.

Everything work fine except some calls from phones that are connected to the left PBX. 10-15 % of calls are disconnected with cause code 47 - No resource available, unspecified. Calls are rejected unpredictably w/o making ARQ request to GK.

deb isdn q931 output:

...

ISDN Se1/0:15 Q931: TX -> DISCONNECT pd = 8 callref = 0xDE92

Cause i = 0x80AF - Resource unavailable, unspecified

...

sh h323 gateway cause output:

CAUSE CODE STATISTICS AT 01:47:22

DISC CAUSE CODE FROM OTHER PEER FROM H323 PEER

0 0 2

16 normal call clearing 27 41

27 user busy (17) 17 0

34 no circuit (34) 0 2

47 no resource (47) 0 11

sh run

...

voice-card 1

codec complexity high

dspfarm

...

isdn switch-type primary-net5

...

controller E1 1/0

framing NO-CRC4

pri-group timeslots 1-31

....

Thanks for support.

Andrei Gromov

[rbradfield]

two things come to mind

1) are all 30 channels used? The PABX may be configured for less than 30 channels.

2) DSPs might have a problem, I see you have the dspfarm command are you using some of the dsps or trancoding/conferencing. do you still get the problem if you remove the dspfarm commnd. Or there could be a hardware problem with certain dsps, do a "sh voice dsp " command

HTH

Richard.