Chimata cade dopo 2 min

Ciao a tutti,

Ho un problema su alcune chiamate che si interrompono senza motivo.
In pratica la chiamata entra dal patton si collega ad un risponditore 800 dove sono tutti collegati e dopo 2 min cade.
problemi di nat non ce ne dovrebbero essere dato che con la stessa configurazione fino ad ora ha sempre funzionato.
Il problema si presenta su numeri a casa, vi incollo il log per capirci meglio.

Da quanto riesco a capire la chiamata viene chiusa contemporaneamente dagli interni che non hanno preso la telefonata, mentre l'altro interno è in telefonata.
E' possibile una cosa del genere? il numer 9999999 è il numero chiamante che ho provveduto ad oscurare.

20/04/2018 14:41:06:552 | 5 | Currently active calls [none]
20/04/2018 14:41:26:013 | 6 | [Flow] Looking for inbound target: called=000000; caller="9999999999" <sip:9999999999@:5060>
20/04/2018 14:41:26:014 | 6 | [CM503012]: Inbound office hours rule (unnamed) for 10000 forwards to DN:800
20/04/2018 14:41:26:019 | 6 | Line limit check: Current # of calls for line Lc:10000(@Patton Analog FXO[<sip:[email protected]:5060>]) is 1; limit is 1
20/04/2018 14:41:26:019 | 6 | [CM503001]: Call(C:251): Incoming call from Line:10000<<9999999999 to <sip:[email protected]:5060>
20/04/2018 14:41:26:019 | 6 | [CM500002]: Call(C:251): Info on incoming INVITE from Line:10000<<9999999999:
Invite-IN Recv Req INVITE from 192.168.37.10:5060 tid=a30a44620930c8b45 Call-ID=99b8b7e1171bb642:
INVITE sip:[email protected]:5060 SIP/2.0
Via: SIP/2.0/UDP 192.168.37.10:5060;branch=z9hG4bKa30a44620930c8b45
Max-Forwards: 70
Contact: <sip:[email protected]:5060;transport=udp>
To: <sip:[email protected]:5060>
From: "9999999999"<sip:[email protected]:5060>;tag=941e5fa53c
Call-ID: 99b8b7e1171bb642
CSeq: 13404 INVITE
Allow: ACK, BYE, CANCEL, INVITE, NOTIFY, OPTIONS, INFO, UPDATE, REFER, REGISTER
Content-Type: application/sdp
Proxy-Authorization: Digest username="10000",realm="3CXPhoneSystem",nonce="414d535c10ea70f559:09f77b3337863b28e6c387dc236aa99e",uri="sip:[email protected]:5060",response="7c4440cd942354ed2a05f67c184107b1",algorithm=MD5
Supported: replaces
User-Agent: Patton SN4112 JO EUI 00A0BA063822 R6.10 2017-09-04 H323 SIP FXS FXO M5T SIP Stack/4.2.14.18
Content-Length: 247

v=0
o=MxSIP 0 50 IN IP4 192.168.37.10
s=SIP Call
c=IN IP4 192.168.37.10
t=0 0
m=audio 4908 RTP/AVP 0 8 18 101
a=rtpmap:0 PCMU/8000
a=rtpmap:8 PCMA/8000
a=rtpmap:18 G729/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-16
a=sendrecv

20/04/2018 14:41:26:020 | 6 | [CM505002]: Gateway:[Patton Analog FXO] Device info: Device Not Identified: User Agent not matched; Capabilities:[reinvite, replaces, able-no-sdp, recvonly] UserAgent: [Patton SN4112 JO EUI 00A0BA063822 R6.10 2017-09-04 H323 SIP FXS FXO M5T SIP Stack/4.2.14.18] PBX contact: [sip:[email protected]:5060]
20/04/2018 14:41:26:020 | 6 | [CM503010]: Call(C:251): Making route(s) from Line:10000<<9999999999 to <sip:[email protected]:5060>
20/04/2018 14:41:26:020 | 6 | [Flow] Target endpoint for 800 is RingAll:800
20/04/2018 14:41:26:020 | 6 | [Flow] Call(C:251): has built target endpoint: RingAll:800 for call from L:251.1[Line:10000<<9999999999]
20/04/2018 14:41:26:020 | 6 | [Flow] Target endpoint for 201 is Extn:201
20/04/2018 14:41:26:021 | 6 | [Flow] Target endpoint for 202 is Extn:202
20/04/2018 14:41:26:021 | 6 | [Flow] Target endpoint for 203 is Extn:203
20/04/2018 14:41:26:021 | 6 | [Flow] Target endpoint for 204 is Extn:204
20/04/2018 14:41:26:021 | 6 | [Flow] Target endpoint for 205 is Extn:205
20/04/2018 14:41:26:021 | 6 | [CM503004]: Call(C:251): Route 1: from L:251.1[Line:10000<<9999999999] to T:RingAll:800@[Dev:sip:[email protected]:5488;rinstance=047742818d899a96,Dev:sip:[email protected]:5060,Dev:sip:[email protected]:5060,Dev:sip:[email protected]:5060,Dev:sip:[email protected]:5060,Dev:sip:[email protected]:5060]
20/04/2018 14:41:26:021 | 6 | [CM503027]: Call(C:251): From: Line:10000<<9999999999 ("9999999999" <sip:[email protected]:5060>) to T:RingAll:800@[Dev:sip:[email protected]:5488;rinstance=047742818d899a96,Dev:sip:[email protected]:5060,Dev:sip:[email protected]:5060,Dev:sip:[email protected]:5060,Dev:sip:[email protected]:5060,Dev:sip:[email protected]:5060]
20/04/2018 14:41:26:045 | 8 | [CM503025]: Call(C:251): Calling T:RingAll:800@[Dev:sip:[email protected]:5488;rinstance=047742818d899a96,Dev:sip:[email protected]:5060,Dev:sip:[email protected]:5060,Dev:sip:[email protected]:5060,Dev:sip:[email protected]:5060,Dev:sip:[email protected]:5060] for L:251.1[Line:10000<<9999999999]
20/04/2018 14:41:26:049 | 8 | [CM503025]: Call(C:251): Calling T:RingAll:800@[Dev:sip:[email protected]:5488;rinstance=047742818d899a96,Dev:sip:[email protected]:5060,Dev:sip:[email protected]:5060,Dev:sip:[email protected]:5060,Dev:sip:[email protected]:5060,Dev:sip:[email protected]:5060] for L:251.1[Line:10000<<9999999999]
20/04/2018 14:41:26:052 | 8 | [CM503025]: Call(C:251): Calling T:RingAll:800@[Dev:sip:[email protected]:5488;rinstance=047742818d899a96,Dev:sip:[email protected]:5060,Dev:sip:[email protected]:5060,Dev:sip:[email protected]:5060,Dev:sip:[email protected]:5060,Dev:sip:[email protected]:5060] for L:251.1[Line:10000<<9999999999]
20/04/2018 14:41:26:055 | 8 | [CM503025]: Call(C:251): Calling T:RingAll:800@[Dev:sip:[email protected]:5488;rinstance=047742818d899a96,Dev:sip:[email protected]:5060,Dev:sip:[email protected]:5060,Dev:sip:[email protected]:5060,Dev:sip:[email protected]:5060,Dev:sip:[email protected]:5060] for L:251.1[Line:10000<<9999999999]
20/04/2018 14:41:26:058 | 8 | [CM503025]: Call(C:251): Calling T:RingAll:800@[Dev:sip:[email protected]:5488;rinstance=047742818d899a96,Dev:sip:[email protected]:5060,Dev:sip:[email protected]:5060,Dev:sip:[email protected]:5060,Dev:sip:[email protected]:5060,Dev:sip:[email protected]:5060] for L:251.1[Line:10000<<9999999999]
20/04/2018 14:41:26:061 | 8 | [CM503025]: Call(C:251): Calling T:RingAll:800@[Dev:sip:[email protected]:5488;rinstance=047742818d899a96,Dev:sip:[email protected]:5060,Dev:sip:[email protected]:5060,Dev:sip:[email protected]:5060,Dev:sip:[email protected]:5060,Dev:sip:[email protected]:5060] for L:251.1[Line:10000<<9999999999]
20/04/2018 14:41:26:297 | 8 | [CM503002]: Call(C:251): Alerting Extn:201 by contact <sip:[email protected]:5488>
20/04/2018 14:41:26:297 | 8 | [CM505001]: Endpoint Extn:201: Device info: Device Not Identified: User Agent not matched; Capabilities:[reinvite, replaces, able-no-sdp, recvonly] UserAgent: [3CX Push Service] PBX contact: [sip:[email protected]:5060]
20/04/2018 14:41:36:557 | 5 | Currently active calls - 1: [251]
20/04/2018 14:41:43:963 | 8 | [CM503002]: Call(C:251): Alerting Extn:204 by contact <sip:[email protected]:5060>
20/04/2018 14:41:43:963 | 8 | [CM505001]: Endpoint Extn:204: Device info: Device Not Identified: User Agent not matched; Capabilities:[reinvite, replaces, able-no-sdp, recvonly] UserAgent: [Linksys/SPA921-5.1.8] PBX contact: [sip:[email protected]:5060]
20/04/2018 14:41:43:964 | 8 | L:251.6[Extn:204] has joined to L:251.1[Line:10000<<9999999999]
20/04/2018 14:41:43:965 | 8 | [CM503007]: Call(C:251): Line:10000<<9999999999 has joined, contact <sip:[email protected]:5060>
20/04/2018 14:41:43:966 | 8 | [CM503007]: Call(C:251): Extn:204 has joined, contact <sip:[email protected]:5060>
20/04/2018 14:41:44:024 | 8 | [CM503003]: Call(C:251): Call to <sip:[email protected]:5060> has failed; Cause: 487 Request Terminated/INVITE from 192.168.37.20:5060
20/04/2018 14:41:44:025 | 8 | Leg L:251.5[Extn:203] is terminated: Cause: 487 Request Terminated/INVITE from 192.168.37.20:5060
20/04/2018 14:41:44:028 | 8 | [CM503003]: Call(C:251): Call to <sip:[email protected]:5060> has failed; Cause: 487 Request Terminated/INVITE from 192.168.37.25:5060
20/04/2018 14:41:44:028 | 8 | Leg L:251.7[Extn:205] is terminated: Cause: 487 Request Terminated/INVITE from 192.168.37.25:5060
20/04/2018 14:41:44:029 | 8 | [CM503003]: Call(C:251): Call to <sip:[email protected]:5060> has failed; Cause: 487 Request Terminated/INVITE from 192.168.37.22:5060
20/04/2018 14:41:44:030 | 8 | Leg L:251.3[Extn:201] is terminated: Cause: 487 Request Terminated/INVITE from 192.168.37.22:5060
20/04/2018 14:41:44:030 | 8 | [CM503003]: Call(C:251): Call to <sip:[email protected]:5060> has failed; Cause: 487 Request Terminated/INVITE from 192.168.37.23:5060
20/04/2018 14:41:44:031 | 8 | Leg L:251.4[Extn:202] is terminated: Cause: 487 Request Terminated/INVITE from 192.168.37.23:5060
20/04/2018 14:41:44:215 | 8 | [CM503003]: Call(C:251): Call to <sip:[email protected]:5060> has failed; Cause: 487 Request Terminated/INVITE from 127.0.0.1:5488
20/04/2018 14:41:44:216 | 8 | Leg L:251.2[Extn:201] is terminated: Cause: 487 Request Terminated/INVITE from 127.0.0.1:5488
20/04/2018 14:42:05:286 | 8 | Leg L:251.1[Line:10000<<9999999999] is terminated: Cause: BYE from 192.168.37.10:5060
20/04/2018 14:42:05:287 | 8 | [CM503008]: Call(C:251): Call is terminated
20/04/2018 14:42:05:287 | 8 | Leg L:251.6[Extn:204] is terminated: Cause: BYE from local
20/04/2018 14:42:06:564 | 5 | Currently active calls [none]