[cisco-voip] insufficient bandwidth on Cisco ATA 188 with GnuGK

[vladimir botka]

Hello,
when I try to make a call to Cisco ATA188 I recieve "insufficient 
bandwidth" message.
My configuration:
ATA188 (192.168.1.7) <---> (192.168.1.6) FreeBSD.5.2;GnuGK 
(botka.homeunix.org) <--->
1. I use OhPhone (sw) to make calls.
2. there is no problem to make calls to ATA188 from internal network 
(192.168.1.0) with OhPhone, or NetMeeting
3. there is no problem to make calls with OhPhone, or NetMeeting from 
outside world to OhPhone, or NetMeeting on internal network (192.168.1.0)
5. the problem *IS* to call ATA188 from outside world ( was tested with 
OhPhone and NetMeeting). The ATA188 rings, but there is no connection 
established.
next is the ATA188 syslog:
callingpartynumber info: 0x60 0x0 0
Q931<-0:Proceeding
SCC:ev=21[0:0] 0 0
GK<-0: ARQ: 0
GK->0: ACF:0 GK-routed
IRR in 120 sec
CallRasCallBack: 1 33e19a7 33e1af5 33e3d6b
SCC:ev=5[0:0] 13 0
[0:0]RINGING
SCC->(0 0) <cmd 3>
Q931<-0:Alerting
Q931->0:ReleaseComplete: reason -1, tone = 7
H245<-0:EndSessionCmd 0
Q931<-*:ReleaseComplete
SCC:ev=7[0:0] 5 0
[0]MPT mode 0
GK<-0: DRQ:0
SCC:ev=13[0:0] 0 0
GK->0: DCF
CallRasCallBack: 1 0 0 33e3fdf
;
0,
last message repeated 3 times

I would appreciate any competent suggestion.
If needed I can help with FreeBSD and GnuGk configuration for Cisco ATA 
and H323.

Cheers,

Vladimir