FXO doesn't work with stun server

I have dlink 7022s , stun server is only for voip to bypass NAT , but when i have stun server enabled i can't recieve calls from regular FXO , when it is disabled - all work fine.
Please help. Why it is so ?

Log file when FXO works (without stun):

15:51:04 *** SLMON start to log ***
15:51:14 [000513] Receive Cmd=1100, ParaLen=0, Para=[]
15:51:14 [000513] == Ver(1.02.36.99.4913 2007/04/03 13:54:09) PId(085.DLink.Nortel.NoPrefix.drtp) Drv(0.9.4.59.80 13/Oct/2006 18:06:41) Hw(IAD202) == 0.6.5-2
15:53:48 [002054] 2: Fxo Ringing
15:53:48 [002054] 2: FxoHookOff
15:53:48 [002054] 2: SetFxoHookOff()=0, CallerId=
15:53:48 [002054] 2: ==17:WaitAnswerDeviceOk
15:53:48 [002056] 2: ==4:GetDtmf
15:53:49 [002067] 2: WarmLine with [701]
15:53:49 [002067] 2: End Input Default Route [0]
15:53:49 [002067] 2: Line DialNum_New [701]
15:53:49 [002067] 2: OutPinCode=<>, dial_no=<701>
15:53:49 [002067] 2: PhoneBook has GwNo=701, addr=192.168.0.133:5060
15:53:49 [002067] 2: ==7:Inviting
15:53:49 [002067] 2: VoIP CallOut, Invite <sip:701@192.168.0.133:5060;user=phone>
15:53:49 [002068] 2: 703=DIALING
15:53:49 [002069] 0: 701=OFFERING
15:53:50 [002069] 0: Get CallerId=703
15:53:50 [002069] 0: Peer=192.168.0.133:9004, PT=4, RecvOnly=0
15:53:50 [002069] 0: ==9:FxsCallerIdShortRing
15:53:50 [002070] 2: 703=PROCEEDING
15:53:50 [002070] 2: 703=RINGBACK
15:53:50 [002070] 2: PlayFile(/opt/voc/NotifyVoip.pcm)=0
15:53:50 [002070] 2: ==8:RingBack
15:53:50 [002074] 0: Fxs Send DtmfCallerId(703)=0
15:53:50 [002074] 0: ==10:FxsCallerIdSending
15:53:51 [002083] 0: ==11:FxsCallerIdSent
15:53:51 [002086] 0: After CallerId Sent, SetFxsRing()=0
15:53:51 [002086] 0: ==12:Alerting
15:53:53 [002104] 0: Fxs Pickup
15:53:53 [002105] 0: 701=ACCEPT
15:53:53 [002105] 0: ==13:VoipAnswering
15:53:53 [002106] 2: 703=CONNECTED
15:53:53 [002106] 2: Peer=192.168.0.133:9000, PT=4, RecvOnly=0
15:53:53 [002106] 2: RtpApiTalk[1,1], Peer=192.168.0.133:9000, PT=4, FC=1, NewOOB=1
15:53:53 [002106] 2: ==14:Talking
15:53:53 [002107] 0: 701=CONNECTED
15:53:53 [002107] 0: RtpApiTalk[1,1], Peer=192.168.0.133:9004, PT=4, FC=1, NewOOB=1
15:53:53 [002107] 0: ==14:Talking
15:54:20 [002374] DSP_ch0_check=0
15:54:20 [002374] 0: Fxs Hangup
15:54:20 [002374] 0: Bye at Talking
15:54:20 [002374] 0: ==3:Idle
15:54:20 [002374] 0: SetFax(1)=0
15:54:20 [002375] 2: 703=DISCONNECT
15:54:20 [002375] 2: Release Active Dlg
15:54:20 [002375] 2: ==15:PlayBusyTone
15:54:20 [002376] 0: 701=DISCONNECT
15:54:20 [002376] 0: Release Old Dlg #2
15:54:23 [002406] 2: Start Btc Learning
15:54:25 [002420] 2: Btc Learning Exception No Change
15:54:25 [002420] DSP_ch2_check=0
15:54:25 [002420] 2: FxoHookOn
15:54:25 [002420] 2: ==3:Idle
15:54:25 [002420] 2: SetFax(1)=0

Log file when FXO doesn't work (with stun):

15:44:00 *** SLMON start to log ***
15:44:10 [049923] Receive Cmd=1100, ParaLen=0, Para=[]
15:44:10 [049923] == Ver(1.02.36.99.4913 2007/04/03 13:54:09) PId(085.DLink.Nortel.NoPrefix.drtp) Drv(0.9.4.59.80 13/Oct/2006 18:06:41) Hw(IAD202) == 0.6.5-2
15:47:03 [051655] 2: Fxo Ringing
15:47:03 [051655] 2: FxoHookOff
15:47:03 [051655] 2: SetFxoHookOff()=0, CallerId=
15:47:03 [051655] 2: ==17:WaitAnswerDeviceOk
15:47:03 [051656] 2: ==4:GetDtmf
15:47:04 [051667] 2: WarmLine with [701]
15:47:04 [051668] 2: End Input Default Route [0]
15:47:04 [051668] 2: Line DialNum_New [701]
15:47:04 [051668] 2: OutPinCode=<>, dial_no=<701>
15:47:04 [051668] 2: PhoneBook has GwNo=701, addr=192.168.0.133:5060
15:47:04 [051668] 2: ==7:Inviting
15:47:04 [051668] 2: VoIP CallOut, Invite <sip:701@192.168.0.133:5060;user=phone>
15:47:04 [051669] 2: 703=DIALING
15:47:05 [051670] 0: 701=OFFERING
15:47:05 [051670] 0: Get CallerId=703
15:47:05 [051670] 0: Peer=91.149.153.91:61825, PT=4, RecvOnly=0
15:47:05 [051670] 0: ==9:FxsCallerIdShortRing
15:47:05 [051675] 0: Fxs Send DtmfCallerId(703)=0
15:47:05 [051675] 0: ==10:FxsCallerIdSending
15:47:06 [051684] 0: ==11:FxsCallerIdSent
15:47:06 [051686] 0: After CallerId Sent, SetFxsRing()=0
15:47:06 [051686] 0: ==12:Alerting
15:47:12 [051746] 0: Fxs Pickup
15:47:12 [051747] 0: 701=ACCEPT
15:47:12 [051747] 0: ==13:VoipAnswering
15:47:12 [051748] 2: Invite timeout, Onhook ===
15:47:12 [051749] 2: ==15:PlayBusyTone
15:47:15 [051779] 2: Start Btc Learning
15:47:17 [051794] 2: Btc Learning Exception No Change
15:47:17 [051794] DSP_ch2_check=0
15:47:17 [051794] 2: FxoHookOn
15:47:17 [051794] 2: ==3:Idle
15:47:17 [051794] 2: SetFax(1)=0
15:47:32 [051944] DSP_ch0_check=0
15:47:32 [051944] 0: Fxs Hangup
15:47:32 [051944] 0: ==3:Idle
15:47:32 [051944] 0: SetFax(1)=0
15:47:36 [051984] 4: matrix_just=OFFERING
15:47:36 [051984] 4: Get CallerId=valera_low
15:47:36 [051984] 0: Offering, Fxs Hunting
15:47:36 [051984] 0: Peer PTime=20 #2
15:47:36 [051984] 0: Peer=77.72.168.9:11170, PT=18, RecvOnly=0
15:47:36 [051984] 0: ==9:FxsCallerIdShortRing
15:47:36 [051989] 0: Fxs Send DtmfCallerId(valera_low)=-1
15:47:36 [051989] 0: ==10:FxsCallerIdSending
15:47:36 [051989] 0: ==11:FxsCallerIdSent
15:47:37 [051991] 0: After CallerId Sent, SetFxsRing()=0
15:47:37 [051991] 0: ==12:Alerting

Looks to me from the IP addresses like you've configured this to run on a local network ?

Yes my voip gateway (192.168.0.133) is connected to internet by my computer (192.168.0.135) , on which i have enabled internet sharing for my gateway.

johnmcenroy :

Why it is so ?

To configure an ATA device to work properly behind a NAT/Firewall router using STUN, your device must be connected behind a non-symmetrical NAT/Firewall router. What type of NAT/Firewall router is your DLink 7022S connected?