Пропадает звук с внешки [закрыт]

Коллеги, нужна помощь. Почему-то пропадает звук с внешки через 25 сек соединения. Звоню с мобилы на номер, отвечаю на телефоне, 25 сек слышимость в оба конца нормальная, но на 26-ой секунде пропадает звук с мобилы, внешку не слышно. С внутреннего я говорю и в мобильнике меня четко слышно, а наоборот тишина. В интернете пишут что якобы из-за NAT и RTP трафика. Нужно отключить canreinvite и проблема уйдет, еще советовали перенести externaddr из general в самого пира. Но тоже не помогло.

При звонке запустил -rvvvv все что отобразилось ниже:

[root@voip ~]# asterisk -rvvvv
=========================================================================
Connected to Asterisk 13.14.0 currently running on voip (pid = 1542)
  == Using SIP RTP CoS mark 5
    -- Executing [213137@incoming:1] Dial("SIP/r_213137-00000002", "SIP/125") in new stack
  == Using SIP RTP CoS mark 5
    -- Called SIP/125
    -- SIP/125-00000003 is ringing
    -- SIP/125-00000003 answered SIP/r_213137-00000002
    -- Channel SIP/125-00000003 joined 'simple_bridge' basic-bridge <7687653f-3fab-4a88-8da8-1283f72b39c0>
    -- Channel SIP/r_213137-00000002 joined 'simple_bridge' basic-bridge <7687653f-3fab-4a88-8da8-1283f72b39c0>
       > Bridge 7687653f-3fab-4a88-8da8-1283f72b39c0: switching from simple_bridge technology to native_rtp
       > Locally RTP bridged 'SIP/r_213137-00000002' and 'SIP/125-00000003' in stack
       > Locally RTP bridged 'SIP/r_213137-00000002' and 'SIP/125-00000003' in stack
       > 0x7f8c40006700 -- Probation passed - setting RTP source address to 192.168.50.12:12224
       > 0x7f8b8c00d0c0 -- Probation passed - setting RTP source address to 10.10.10.113:17924
    -- Channel SIP/125-00000003 left 'native_rtp' basic-bridge <7687653f-3fab-4a88-8da8-1283f72b39c0>
    -- Channel SIP/r_213137-00000002 left 'native_rtp' basic-bridge <7687653f-3fab-4a88-8da8-1283f72b39c0>
  == Spawn extension (incoming, 213137, 1) exited non-zero on 'SIP/r_213137-00000002'
voip*CLI>

Вот конфигурация sip.conf^

;
; SIP Configuration example for Asterisk
;

[general]

localnet = 192.168.50.0/24
language=ru
context=default
allowoverlap=no
udpbindaddr=0.0.0.0
tcpenable=no
tcpbindaddr=0.0.0.0
transport=udp
srvlookup=yes
allowguest=no
limitonpeers=yes
alwaysauthreject=yes

defaultexpiry=300
minexpiry=300
maxexpiry=3600

[authentication]

[r_213137]
type=peer
externaddr=10.9.3.7
host=10.10.10.100
port=5060
nat=force_rport,comedia
insecure=invite,port
disallow=all
allow=alaw
allow=ulaw
dtmfmode=auto
secret=********
defaultuser=213137
trunkname=213137
fromuser=213137
callbackextension=213137
context=incoming
directmedia=no
canreinvite=no

;Create template group IT
[itdep](!)
type=friend
context=outcoling
secret=*******
host=dynamic
nat=no
qualify=yes
directmedia=no
callgroup=1
pickupgroup=1
call-limit=2
dtmfmode=auto
disallow=all
allow=alaw
allow=ulaw
allow=g729
allow=g723
allow=g722
canreinvite=no

;Create users group IT
[125](itdep)
callerid="Admin" <125>

Это конфиг extensions.conf

;
; Extensions Configuration example for Asterisk
;
[general]
static=yes
writeprotect=no

[globals]

[default]

[handup-sip]
exten => _X!,1,Hangup()

;Dial plan "Outcoling"
[outcoling]
exten => 900,1,Answer()
exten => 900,n,ConfBridge(1,confer)
exten => _XXX,1,Dial(SIP/${EXTEN})
exten => _XXX.,1,Dial(SIP/${EXTEN}@r_213137)
include => handup-sip

;Dial plan "Incoming"
[incoming]
exten => 213137,1,Dial(SIP/125)

Подскажите, что еще подкорректировать, чтобы исправить проблему?

UDP: При снятии дампа в момент когда пропал голос, дамп перестал записываться. На экране было следующее:

[root@voip ~]tcpdump -s 0 -w voip.cap
tcpdump: listening on ppp0, link-type LINUX_SLL (Linux cooked), capture size 65535 bytes
tcpdump: pcap_loop: The interface down
3742 packets captured
3742 packets received by filter
0 packets dropped by kernel

Как я понял это просто падает ppp0 соединение с провайдером ?

UPD 2.0 Вот логи, похоже таки интерфейс падает, пока непонятно почему.

Feb 22 07:25:04 voip NetworkManager[730]: <warn>  [1487737504.2376] dhcp4 (eno1): request timed out
Feb 22 07:25:04 voip NetworkManager[730]: <info>  [1487737504.2377] dhcp4 (eno1): state changed unknown -> timeout
Feb 22 07:25:04 voip NetworkManager[730]: <info>  [1487737504.2456] dhcp4 (eno1): canceled DHCP transaction, DHCP client pid 12930
Feb 22 07:25:04 voip NetworkManager[730]: <info>  [1487737504.2456] dhcp4 (eno1): state changed timeout -> done
Feb 22 07:25:04 voip NetworkManager[730]: <info>  [1487737504.2459] device (eno1): state change: ip-config -> failed (reason 'ip-config-unavailable') [70 120 5]
Feb 22 07:25:04 voip NetworkManager[730]: <warn>  [1487737504.2464] device (eno1): Activation: failed for connection 'eno1'
Feb 22 07:25:04 voip NetworkManager[730]: <info>  [1487737504.2469] device (eno1): state change: failed -> disconnected (reason 'none') [120 30 0]
Feb 22 07:25:04 voip pppoe[11396]: recv (receivePacket): Network is down
Feb 22 07:25:04 voip pppoe[11396]: recv (receivePacket): Network is down
Feb 22 07:25:04 voip NetworkManager[730]: <info>  [1487737504.2894] device (eno1): set-hw-addr: reset MAC address to E0:07:1B:8A:69:2F (deactivate)
Feb 22 07:25:04 voip kernel: IPv6: ADDRCONF(NETDEV_UP): eno1: link is not ready
Feb 22 07:25:04 voip NetworkManager[730]: <info>  [1487737504.3813] device (eno1): state change: disconnected -> unavailable (reason 'carrier-changed') [30 20 40]
Feb 22 07:25:08 voip NetworkManager[730]: <info>  [1487737508.0839] device (eno1): link connected
Feb 22 07:25:08 voip kernel: igb 0000:02:00.0 eno1: igb: eno1 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX
Feb 22 07:25:08 voip kernel: IPv6: ADDRCONF(NETDEV_CHANGE): eno1: link becomes ready
Feb 22 07:25:08 voip NetworkManager[730]: <info>  [1487737508.0843] device (eno1): state change: unavailable -> disconnected (reason 'carrier-changed') [20 30 40]
Feb 22 07:25:08 voip NetworkManager[730]: <info>  [1487737508.0851] policy: auto-activating connection 'eno1'
Feb 22 07:25:08 voip NetworkManager[730]: <info>  [1487737508.0861] device (eno1): Activation: starting connection 'eno1' (6a298cde-294a-486b-a89b-34ac821efadd)
Feb 22 07:25:08 voip NetworkManager[730]: <info>  [1487737508.0863] device (eno1): state change: disconnected -> prepare (reason 'none') [30 40 0]
Feb 22 07:25:08 voip pppoe[11396]: recv (receivePacket): Network is down
Feb 22 07:25:08 voip pppoe[11396]: recv (receivePacket): Network is down
Feb 22 07:25:08 voip NetworkManager[730]: <info>  [1487737508.1287] device (eno1): set-hw-addr: set-cloned MAC address to 00:18:82:80:BE:3C (00:18:82:80:BE:3C)
Feb 22 07:25:08 voip kernel: IPv6: ADDRCONF(NETDEV_UP): eno1: link is not ready
Feb 22 07:25:08 voip NetworkManager[730]: <info>  [1487737508.2203] device (eno1): state change: prepare -> config (reason 'none') [40 50 0]
Feb 22 07:25:08 voip NetworkManager[730]: <info>  [1487737508.2209] device (eno1): state change: config -> ip-config (reason 'none') [50 70 0]
Feb 22 07:25:08 voip NetworkManager[730]: <info>  [1487737508.2212] dhcp4 (eno1): activation: beginning transaction (timeout in 45 seconds)
Feb 22 07:25:08 voip NetworkManager[730]: <info>  [1487737508.2227] dhcp4 (eno1): dhclient started with pid 12937
Feb 22 07:25:08 voip dhclient[12937]: DHCPDISCOVER on eno1 to 255.255.255.255 port 67 interval 8 (xid=0x42d155ac)
Feb 22 07:25:11 voip NetworkManager[730]: <info>  [1487737511.4500] device (eno1): link connected
Feb 22 07:25:11 voip kernel: igb 0000:02:00.0 eno1: igb: eno1 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX
Feb 22 07:25:11 voip kernel: IPv6: ADDRCONF(NETDEV_CHANGE): eno1: link becomes ready

UPD 3.0 Проблема решена. Все-таки глюки с получением адреса из внутренних сетей провайдера.