СвязьПроект

Помогите разобраться. Где, что поднастроить?
Часть вызовов отбивается, судя по всему не получая Alert от принимающей станции..
неудачный вызов :
118 <GK 67> : Send ARQ.
119 <GK 67> : Received ACF.
120 <H323 67> : local capabilities.
number of capabilities = 6
1 : g711alaw-64k
2 : g711ulaw-64k
3 : g729A-8k
4 : T.38
5 : UserInput/basicString
6 : UserInput/hookflash
121 <H225 67> : Try signalling TCP connect (192.168.54.1:1720)
122 <H225 67> : Signalling TCP connect success (67)
123 <Q931 67> : Send SETUP
124 <Call 67> : Alert from(ffffffff) pseudo(1) inband(0) status(CalleeInitiated)
125 <Q931 67> : Received CALL PROCEEDING
126 <H225 67> : Remote Endpoint (Nortel_CSE_1000,1.0.x,181,0,20052)
127 <Q931 67> : Received ALERTING
128 <H225 67> : Remote Endpoint (Nortel_CSE_1000,1.0.x,181,0,20052)
129 <Q931 67> : Received Progress Indicator : desc(2), coding(0), location(0)
130 <Call 67> : Alert from(ffffffff) pseudo(0) inband(0) status(CalleeAlerting)
131 <Main 000000> : Exception received from device.

132 <Call 67> : Terminated from(fffffffd) this(Local:Management) before(NULL) forced(1) time(1299670280)
133 <CEP 000000> : DisconnectCall at Busy
134 <CEP 000000> : StopSignal
135 <CEP 000000> : Disconnect (0)
136 <Q931 67> : Send RELEASE COMPLETE
137 <GK 67> : Send DRQ.
138 <NetEP 67> : Call TO <192.168.54.1> terminated reason(Local:Management)
139 <GK 67> : Received DCF.

удачный вызов:
272 <GK 77> : Send ARQ.
273 <GK 77> : Received ACF.
274 <H323 77> : local capabilities.
number of capabilities = 6
1 : g711alaw-64k
2 : g711ulaw-64k
3 : g729A-8k
4 : T.38
5 : UserInput/basicString
6 : UserInput/hookflash
275 <H225 77> : Try signalling TCP connect (192.168.54.1:1720)
276 <H225 77> : Signalling TCP connect success (77)
277 <Q931 77> : Send SETUP
278 <Call 77> : Alert from(ffffffff) pseudo(1) inband(0) status(CalleeInitiated)
279 <Q931 77> : Received CALL PROCEEDING
280 <H225 77> : Remote Endpoint (Nortel_CSE_1000,1.0.x,181,0,20052)
281 <Q931 77> : Received ALERTING
282 <H225 77> : Remote Endpoint (Nortel_CSE_1000,1.0.x,181,0,20052)
283 <Q931 77> : Received Progress Indicator : desc(8), coding(0), location(0)
284 <NetCon 77> : Alert received (inband tone explicitly).

285 <Call 77> : Alert from(ffffffff) pseudo(0) inband(1) status(CalleeAlerting)
286 <Q931 77> : Received CONNECT
287 <H225 77> : Remote Endpoint (Nortel_CSE_1000,1.0.x,181,0,20052)
288 <H245 77> : Send TCS request.
289 <H245 77> : Send MSD request.
290 <H245 77> : Received TCS request.
291 <H245 77> : remote capabilities matching to local capabilities.
number of capabilities = 3
1 : g711alaw-64k
2 : g711ulaw-64k
3 : g729A-8k
292 <H245 77> : Send TCS ack.
293 <H245 77> : Received MSD request.
294 <H245 77> : Send MSD ack.
295 <H245 77> : Received TCS ack..
296 <H245 77> : Received MSD ack.
297 <H245 77> : Send OLC request.
298 <Call 77> : Connected from(ffffffff)
299 <NetEP 77> : Call with irkutsk established
300 <H245 77> : Received OLC request.

Вызовы H323, в IP сети идут идентично на одну и ту же медиакарту Меридиана направляемые туда RASом.
При некоторых неудачных звонках отвечающий телефон успевает даже пикнуть, вызов доходит но отбивается при соединение самим шлюзом,
судя по всему по истечении какого то таймера не дождавшись Alert'а.