Incoming call hang up

I have the latest stable version, PBX Firmware: 5.211.65-1
PBX Service Pack: 1.0.0.0
when someone call us by using the external phone number provided by this provider, the call cannot be established. It’s trying to call but then, automatically hung up.
Verbose console log output:
== Using SIP RTP TOS bits 184
== Using SIP RTP CoS mark 5
– Executing [[email protected]:1] NoOp(“SIP/94.23.212.118-00003783”, “Received incoming SIP connection from unknown peer to 00948814635076”) in new stack
– Executing [[email protected]:2] Set(“SIP/94.23.212.118-00003783”, “DID=00948814635076”) in new stack
– Executing [[email protected]:3] Goto(“SIP/94.23.212.118-00003783”, “s,1”) in new stack
– Goto (from-sip-external,s,1)
– Executing [[email protected]:1] GotoIf(“SIP/94.23.212.118-00003783”, “1?checklang:noanonymous”) in new stack
– Goto (from-sip-external,s,2)
– Executing [[email protected]:2] GotoIf(“SIP/94.23.212.118-00003783”, “0?setlanguage:from-trunk,00948814635076,1”) in new stack
– Goto (from-trunk,00948814635076,1)
– Executing [00[email protected]:1] Set(“SIP/94.23.212.118-00003783”, “__FROM_DID=00948814635076”) in new stack
– Executing [[email protected]:2] NoOp(“SIP/94.23.212.118-00003783”, “Received an unknown call with DID set to 00948814635076”) in new stack
– Executing [[email protected]:3] Goto(“SIP/94.23.212.118-00003783”, “s,a2”) in new stack
– Goto (from-trunk,s,2)
– Executing [[email protected]:2] Answer(“SIP/94.23.212.118-00003783”, “”) in new stack
– Executing [[email protected]:3] Wait(“SIP/94.23.212.118-00003783”, “2”) in new stack
– Executing [[email protected]:4] Playback(“SIP/94.23.212.118-00003783”, “ss-noservice”) in new stack
– <SIP/94.23.212.118-00003783> Playing ‘ss-noservice.gsm’ (language ‘en’)
– Executing [[email protected]:5] SayAlpha(“SIP/94.23.212.118-00003783”, “00948814635076”) in new stack
– <SIP/94.23.212.118-00003783> Playing ‘digits/0.gsm’ (language ‘en’)
– <SIP/94.23.212.118-00003783> Playing ‘digits/0.gsm’ (language ‘en’)
– <SIP/94.23.212.118-00003783> Playing ‘digits/9.gsm’ (language ‘en’)
– <SIP/94.23.212.118-00003783> Playing ‘digits/4.gsm’ (language ‘en’)
– <SIP/94.23.212.118-00003783> Playing ‘digits/8.gsm’ (language ‘en’)
– <SIP/94.23.212.118-00003783> Playing ‘digits/8.gsm’ (language ‘en’)
– <SIP/94.23.212.118-00003783> Playing ‘digits/1.gsm’ (language ‘en’)
– <SIP/94.23.212.118-00003783> Playing ‘digits/4.gsm’ (language ‘en’)
– <SIP/94.23.212.118-00003783> Playing ‘digits/6.gsm’ (language ‘en’)
– <SIP/94.23.212.118-00003783> Playing ‘digits/3.gsm’ (language ‘en’)
– <SIP/94.23.212.118-00003783> Playing ‘digits/5.gsm’ (language ‘en’)
– <SIP/94.23.212.118-00003783> Playing ‘digits/0.gsm’ (language ‘en’)
– <SIP/94.23.212.118-00003783> Playing ‘digits/7.gsm’ (language ‘en’)
– <SIP/94.23.212.118-00003783> Playing ‘digits/6.gsm’ (language ‘en’)
– Executing [[email protected]:6] Hangup(“SIP/94.23.212.118-00003783”, “”) in new stack
== Spawn extension (from-trunk, s, 6) exited non-zero on ‘SIP/94.23.212.118-00003783’
– Executing [[email protected]:1] Macro(“SIP/94.23.212.118-00003783”, “hangupcall,”) in new stack
– Executing [[email protected]:1] GotoIf(“SIP/94.23.212.118-00003783”, “1?theend”) in new stack
– Goto (macro-hangupcall,s,3)
– Executing [[email protected]:3] ExecIf(“SIP/94.23.212.118-00003783”, “0?Set(CDR(recordingfile)=)”) in new stack
– Executing [[email protected]:4] Hangup(“SIP/94.23.212.118-00003783”, “”) in new stack
== Spawn extension (macro-hangupcall, s, 4) exited non-zero on ‘SIP/94.23.212.118-00003783’ in macro ‘hangupcall’
== Spawn extension (from-trunk, h, 1) exited non-zero on ‘SIP/94.23.212.118-00003783’
[2015-04-29 17:28:48] WARNING[8432]: chan_sip.c:4019 retrans_pkt: Retransmission timeout reached on transmission 95bcf459beb4ad58bf7af7588b3b4376 for seqno 1 (Critical Response) – See
Packet timed out after 31999ms with no response

Thanks you for help.