[axiomatech]

ho un telefono yealink t22 in remoto
il telefono si registra correttamente ma quando provo a contattare un interno mi viene visualizzato in messaggio FORBIDDEN

la log è la seguente:

16:28:39.604 [CM502001]: Source info: From: "Fratelli
Ranieri"<sip:50@2.119.145.147>;tag=874258001<sip:21@2.119.145.147>
16:28:39.604 [CM503013]: Call(13): Incoming call rejected, caller is unknown; msg=SipReq: INVITE 21@2.119.145.147 tid=1990723246 cseq=INVITE contact=50@85.20.134.17:54179 / 2 from(wire)
16:28:39.604 [CM500002]: Info on incoming INVITE:
INVITE sip:21@2.119.145.147 SIP/2.0
Via: SIP/2.0/UDP 85.20.134.17:54179;rport=53491;branch=z9hG4bK1990723246
Max-Forwards: 70
Contact: <sip:50@85.20.134.17:54179>
To: <sip:21@2.119.145.147>
From: "Fratelli Ranieri"<sip:50@2.119.145.147>;tag=874258001
Call-ID: 635242960@192.168.0.227
CSeq: 2 INVITE
Expires: 360
Allow: INVITE, INFO, PRACK, ACK, BYE, CANCEL, OPTIONS, NOTIFY, REGISTER, SUBSCRIBE, REFER, PUBLISH, UPDATE, MESSAGE
Proxy-Authorization: Digest username="50",realm="3CXPhoneSystem",nonce="414d535c04b6071649:d15d16fe898da65db680776c6767e9d0",uri="sip:21@2.119.145.147",response="8c384b7f0351793ed0ef651a5c6c3dbc",algorithm=MD5
Supported: replaces
User-Agent: Yealink SIP-T20P 9.60.23.6
Allow-Events: talk, hold, conference, refer, check-sync
Content-Length: 0

sembra che non riconosca il chiamate, ma il telefono è autenticato