По данной ссылке получаешь ничего.
Там и в Документации ничего нет, я же говорил, наверное сайт строят.

Завтра буду пробовать залить новую прошивку.

Спасибо!

Обновил прошивки на обоих шлюзах.
Запустил SLmonitor. Обрывы связи повторяются. В мониторе трудно что понять.

Выкладывай сюда момент разрыва.

Где-то здесь вызов был на 602 с 702.
16:35:13 [054660] 0: SetInputGain(4)
16:35:13 [054660] 0: SetFax(1)=0
16:35:21 [054742] 1: 602=OFFERING
16:35:21 [054742] 1: Get CallerId=702
16:35:21 [054742] 1: Peer=192.168.51.150:9002, PT=8, RecvOnly=0
16:35:21 [054742] 1: TrunkPrefix=, Dest=, Dialno=
16:35:21 [054742] 1: FxoHookOff
16:35:21 [054742] 1: SetInputGain(7)
16:35:21 [054742] 1: ==18:TrunkDialOut
16:35:22 [054743] 1: Fxo DialOut OK
16:35:22 [054744] 1: 602=ACCEPT
16:35:22 [054744] 1: ==13:VoipAnswering
16:35:22 [054745] 1: 602=CONNECTED
16:35:22 [054745] 1: RtpApiTalk[1,1], Peer=192.168.51.150:9002, PT=8, FC=2, NewOOB=0
16:35:22 [054745] 1: ==14:Talking
16:35:27 [054795] 1: Fxo Detected CPT Busy(6)
16:35:27 [054795] DSP_ch1_check=0
16:35:27 [054795] 1: FxoHookOn
16:35:27 [054795] 1: Bye at Talking
16:35:27 [054795] 1: ==15:PlayBusyTone
16:35:27 [054796] DSP_ch1_check=0
16:35:27 [054796] 1: FxoHookOn
16:35:27 [054796] 1: ==3:Idle
16:35:27 [054796] 1: SetInputGain(4)
16:35:27 [054796] 1: SetFax(1)=0
16:35:27 [054796] 1: 602=DISCONNECT
16:35:27 [054796] 1: Release Old Dlg #2
16:35:35 [054880] 0: 601=OFFERING
16:35:35 [054880] 0: Get CallerId=701
16:35:35 [054881] 0: Peer=192.168.51.150:9000, PT=8, RecvOnly=0
16:35:35 [054881] 0: TrunkPrefix=, Dest=, Dialno=
16:35:35 [054881] 0: FxoHookOff
16:35:35 [054881] 0: SetInputGain(7)
16:35:35 [054881] 0: ==18:TrunkDialOut
16:35:35 [054881] 0: Fxo DialOut OK
16:35:35 [054882] 0: 601=ACCEPT
16:35:35 [054882] 0: ==13:VoipAnswering
16:35:36 [054884] 0: 601=CONNECTED
16:35:36 [054884] 0: RtpApiTalk[1,1], Peer=192.168.51.150:9000, PT=8, FC=2, NewOOB=0
16:35:36 [054884] 0: ==14:Talking
16:35:40 [054931] 0: Fxo Detected CPT Busy(6)
16:35:40 [054931] DSP_ch0_check=0
16:35:40 [054931] 0: FxoHookOn
16:35:40 [054932] 0: Bye at Talking
16:35:40 [054932] 0: ==15:PlayBusyTone
16:35:40 [054932] DSP_ch0_check=0
16:35:40 [054932] 0: FxoHookOn
16:35:40 [054932] 0: ==3:Idle
16:35:40 [054932] 0: SetInputGain(4)
16:35:40 [054932] 0: SetFax(1)=0
16:35:41 [054933] 0: 601=DISCONNECT
16:35:41 [054933] 0: Release Old Dlg #2
16:40:58 [058105] 1: 602=OFFERING
16:40:58 [058105] 1: Get CallerId=702
16:40:58 [058105] 1: Peer=192.168.51.150:9002, PT=8, RecvOnly=0
16:40:58 [058105] 1: TrunkPrefix=, Dest=, Dialno=
16:40:58 [058105] 1: FxoHookOff
16:40:58 [058105] 1: SetInputGain(7)
16:40:58 [058105] 1: ==18:TrunkDialOut
16:40:58 [058106] 1: Fxo DialOut OK
16:40:58 [058106] 1: 602=ACCEPT
16:40:58 [058106] 1: ==13:VoipAnswering
16:40:58 [058108] 1: 602=CONNECTED
16:40:58 [058108] 1: RtpApiTalk[1,1], Peer=192.168.51.150:9002, PT=8, FC=2, NewOOB=0
16:40:58 [058108] 1: ==14:Talking
16:41:58 [058703] 1: 602=DISCONNECT
16:41:58 [058704] 1: Release Active Dlg
16:41:58 [058704] 1: ==15:PlayBusyTone
16:41:58 [058704] 1: Start Btc Learning
16:41:59 [058715] 1: Btc Learning Exception Len
16:41:59 [058715] DSP_ch1_check=0
16:41:59 [058715] 1: FxoHookOn
16:41:59 [058715] 1: ==3:Idle
16:41:59 [058715] 1: SetInputGain(4)
16:41:59 [058715] 1: SetFax(1)=0
16:42:08 [058810] 1: 602=OFFERING
16:42:08 [058810] 1: Get CallerId=702
16:42:08 [058810] 1: Peer=192.168.51.150:9002, PT=8, RecvOnly=0
16:42:08 [058810] 1: TrunkPrefix=, Dest=, Dialno=
16:42:08 [058810] 1: FxoHookOff
16:42:08 [058810] 1: SetInputGain(7)
16:42:08 [058810] 1: ==18:TrunkDialOut
16:42:08 [058811] 1: Fxo DialOut OK
16:42:08 [058811] 1: 602=ACCEPT
16:42:08 [058812] 1: ==13:VoipAnswering
16:42:08 [058813] 1: 602=CONNECTED
16:42:08 [058813] 1: RtpApiTalk[1,1], Peer=192.168.51.150:9002, PT=8, FC=2, NewOOB=0
16:42:08 [058813] 1: ==14:Talking
16:45:46 [060986] 0: 601=OFFERING
16:45:46 [060986] 0: Get CallerId=701
16:45:46 [060986] 0: Peer=192.168.51.150:9000, PT=8, RecvOnly=0
16:45:46 [060986] 0: TrunkPrefix=, Dest=, Dialno=
16:45:46 [060986] 0: FxoHookOff
16:45:46 [060986] 0: SetInputGain(7)
16:45:46 [060986] 0: ==18:TrunkDialOut
16:45:46 [060987] 0: Fxo DialOut OK
16:45:46 [060987] 0: 601=ACCEPT
16:45:46 [060988] 0: ==13:VoipAnswering
16:45:46 [060989] 0: 601=CONNECTED
16:45:46 [060989] 0: RtpApiTalk[1,1], Peer=192.168.51.150:9000, PT=8, FC=2, NewOOB=0
16:45:46 [060989] 0: ==14:Talking
16:46:44 [061564] 1: 602=DISCONNECT
16:46:44 [061565] 1: Release Active Dlg
16:46:44 [061565] 1: ==15:PlayBusyTone
16:46:44 [061565] 1: Start Btc Learning
16:46:45 [061580] 1: Btc Learning Exception No Change
16:46:45 [061580] DSP_ch1_check=0
16:46:45 [061580] 1: FxoHookOn
16:46:45 [061580] 1: ==3:Idle
16:46:45 [061580] 1: SetInputGain(4)
16:46:45 [061580] 1: SetFax(1)=0
16:47:13 [061854] 1: 602=OFFERING
16:47:13 [061854] 1: Get CallerId=702
16:47:13 [061855] 1: Peer=192.168.51.150:9002, PT=8, RecvOnly=0
16:47:13 [061855] 1: TrunkPrefix=, Dest=, Dialno=
16:47:13 [061855] 1: FxoHookOff
16:47:13 [061855] 1: SetInputGain(7)
16:47:13 [061855] 1: ==18:TrunkDialOut
16:47:13 [061855] 1: Fxo DialOut OK
16:47:13 [061856] 1: 602=ACCEPT
16:47:13 [061856] 1: ==13:VoipAnswering
16:47:13 [061858] 1: 602=CONNECTED
16:47:13 [061858] 1: RtpApiTalk[1,1], Peer=192.168.51.150:9002, PT=8, FC=2, NewOOB=0
16:47:13 [061858] 1: ==14:Talking
16:48:19 [062514] 1: 602=DISCONNECT
16:48:19 [062514] 1: Release Active Dlg
16:48:19 [062515] 1: ==15:PlayBusyTone
16:48:19 [062515] 1: Start Btc Learning
16:48:20 [062526] 1: Btc Learning Exception Len
16:48:20 [062526] DSP_ch1_check=0
16:48:20 [062526] 1: FxoHookOn
16:48:20 [062526] 1: ==3:Idle
16:48:20 [062527] 1: SetInputGain(4)
16:48:20 [062527] 1: SetFax(1)=0
16:49:34 [063268] 0: Fxo Detected CPT Busy(5)
16:49:34 [063268] DSP_ch0_check=0
16:49:34 [063268] 0: FxoHookOn
16:49:34 [063268] 0: Bye at Talking
16:49:34 [063269] 0: ==15:PlayBusyTone
16:49:34 [063269] DSP_ch0_check=0
16:49:34 [063269] 0: FxoHookOn
16:49:34 [063269] 0: ==3:Idle
16:49:34 [063269] 0: SetInputGain(4)
16:49:34 [063269] 0: SetFax(1)=0
16:49:34 [063270] 0: 601=DISCONNECT
16:49:34 [063270] 0: Release Old Dlg #2
16:50:22 [063747] 1: 602=OFFERING
16:50:22 [063747] 1: Get CallerId=702
16:50:22 [063748] 1: Peer=192.168.51.150:9002, PT=8, RecvOnly=0
16:50:22 [063748] 1: TrunkPrefix=, Dest=, Dialno=
16:50:22 [063748] 1: FxoHookOff
16:50:22 [063748] 1: SetInputGain(7)
16:50:22 [063748] 1: ==18:TrunkDialOut
16:50:22 [063748] 1: Fxo DialOut OK
16:50:22 [063749] 1: 602=ACCEPT
16:50:22 [063749] 1: ==13:VoipAnswering
16:50:22 [063751] 1: 602=CONNECTED
16:50:22 [063751] 1: RtpApiTalk[1,1], Peer=192.168.51.150:9002, PT=8, FC=2, NewOOB=0
16:50:22 [063751] 1: ==14:Talking
16:50:25 [063778] 1: Fxo Detected CPT Busy(5)
16:50:25 [063778] DSP_ch1_check=0
16:50:25 [063778] 1: FxoHookOn
16:50:25 [063778] 1: Bye at Talking
16:50:25 [063778] 1: ==15:PlayBusyTone
16:50:25 [063779] DSP_ch1_check=0
16:50:25 [063779] 1: FxoHookOn
16:50:25 [063779] 1: ==3:Idle
16:50:25 [063779] 1: SetInputGain(4)
16:50:25 [063779] 1: SetFax(1)=0
16:50:25 [063780] 1: 602=DISCONNECT
16:50:25 [063780] 1: Release Old Dlg #2
16:50:31 [063836] 1: 602=OFFERING
16:50:31 [063836] 1: Get CallerId=702
16:50:31 [063836] 1: Peer=192.168.51.150:9002, PT=8, RecvOnly=0
16:50:31 [063836] 1: TrunkPrefix=, Dest=, Dialno=
16:50:31 [063836] 1: FxoHookOff
16:50:31 [063836] 1: SetInputGain(7)
16:50:31 [063836] 1: ==18:TrunkDialOut
16:50:31 [063837] 1: Fxo DialOut OK
16:50:31 [063837] 1: 602=ACCEPT
16:50:31 [063837] 1: ==13:VoipAnswering
16:50:31 [063839] 1: 602=CONNECTED
16:50:31 [063839] 1: RtpApiTalk[1,1], Peer=192.168.51.150:9002, PT=8, FC=2, NewOOB=0
16:50:31 [063839] 1: ==14:Talking
16:50:51 [064035] 1: 602=DISCONNECT
16:50:51 [064035] 1: Release Active Dlg
16:50:51 [064036] 1: ==15:PlayBusyTone
16:50:51 [064036] 1: Start Btc Learning
16:50:53 [064055] 1: Btc Learning Exception No Change
16:50:53 [064055] DSP_ch1_check=0
16:50:53 [064055] 1: FxoHookOn
16:50:53 [064055] 1: ==3:Idle
16:50:53 [064055] 1: SetInputGain(4)
16:50:53 [064055] 1: SetFax(1)=0
16:52:47 [065202] 0: 601=OFFERING
16:52:47 [065202] 0: Get CallerId=701
16:52:47 [065202] 0: Peer=192.168.51.150:9000, PT=8, RecvOnly=0
16:52:47 [065202] 0: TrunkPrefix=, Dest=, Dialno=
16:52:47 [065202] 0: FxoHookOff
16:52:47 [065202] 0: SetInputGain(7)
16:52:47 [065202] 0: ==18:TrunkDialOut
16:52:47 [065203] 0: Fxo DialOut OK
16:52:47 [065203] 0: 601=ACCEPT
16:52:47 [065203] 0: ==13:VoipAnswering
16:52:48 [065205] 0: 601=CONNECTED
16:52:48 [065205] 0: RtpApiTalk[1,1], Peer=192.168.51.150:9000, PT=8, FC=2, NewOOB=0
16:52:48 [065205] 0: ==14:Talking
16:53:13 [065457] 0: 601=DISCONNECT
16:53:13 [065457] 0: Release Active Dlg
16:53:13 [065457] 0: ==15:PlayBusyTone
16:53:13 [065457] 0: Start Btc Learning
16:53:14 [065470] 0: Btc Learning Exception Len
16:53:14 [065470] DSP_ch0_check=0
16:53:14 [065470] 0: FxoHookOn
16:53:14 [065470] 0: ==3:Idle
16:53:14 [065470] 0: SetInputGain(4)
16:53:14 [065470] 0: SetFax(1)=0
16:54:47 [066395] 1: 602=OFFERING
16:54:47 [066395] 1: Get CallerId=702
16:54:47 [066395] 1: Peer=192.168.51.150:9002, PT=8, RecvOnly=0
16:54:47 [066395] 1: TrunkPrefix=, Dest=, Dialno=
16:54:47 [066395] 1: FxoHookOff
16:54:47 [066395] 1: SetInputGain(7)
16:54:47 [066395] 1: ==18:TrunkDialOut
16:54:47 [066396] 1: Fxo DialOut OK
16:54:47 [066397] 1: 602=ACCEPT
16:54:47 [066397] 1: ==13:VoipAnswering
16:54:47 [066398] 1: 602=CONNECTED
16:54:47 [066398] 1: RtpApiTalk[1,1], Peer=192.168.51.150:9002, PT=8, FC=2, NewOOB=0
16:54:47 [066398] 1: ==14:Talking
16:56:17 [067299] 1: 602=DISCONNECT
16:56:17 [067299] 1: Release Active Dlg
16:56:17 [067299] 1: ==15:PlayBusyTone
16:56:17 [067299] 1: Start Btc Learning
16:56:18 [067312] 1: Btc Learning Exception Len

Причем было подряд 2 разрыва.

Перевожу:
16:35:27 [054795] 1: ФХО обнаружил занято
16:35:27 [054795] DSP_ch1_check=0 (не переводимая игра слов)
16:35:27 [054795] 1: ФХО бросил трубку
16:35:27 [054795] 1: Послан нах

Ключевое для нас:
16:35:27 [054795] 1: ФХО обнаружил занято
как и было предсказанно вначале...

А что поменять в настройках?
У меня чувствительность к "занято" стоит 2 на обоих шлюзах. Поставить 1 ?

Отключи автообучение BTC.
Хоть в одном CPT пропиши наш занято (или занято того, что у тебя воткнуто в FXO) 425 гц, 0.35 с -- сигнал, 0.35 -- пауза
Уменьшь чувствительность до минимума.

Настраивать надо только FXO шлюз. с другим все нормально.

В будущем при обрывах ищи в логах строчку:
Fxo Detected CPT Busy

Если будет появлятся продолжай рыть CPT/Cadense settings

Спасибо, завтра попробую.
У меня оба шлюза DVG-6004S и оба, как я понимаю FXO.
Только к одному подклчено 3 порта станции Panas 1232, а к другому 3 порта станции Panas TDA-100.

У панасов сигнал занято другой. Возьмите частоту и длину сигнала/паузы из руководства к АТС.

Частоты там нет ( в инструкциях), сигнал-пауза : 500мс - 500мс
Поставил, чувствительность = 1, один черт обрывы связи есть.
Кто ставил параметры, может принт-скрины кинет мне.