[Freeswitch-users] FACILITY_NOT_SUBSCRIBED

[Peter P GMX]

I receive a FACILITY_NOT_SUBSCRIBED message when I call from 1000 to 1001.

I've  read in the wiki:
50     FACILITY_NOT_SUBSCRIBED     requested facility not subscribed
[Q.850     This cause indicates that the user has requested a
supplementary service, which is available, but the user is not
authorized to use.

I am wondering which supplementary service this could be. The invite
message is as follows:
======================
U xxx.xx.xx.186:2054 -> xxx.xx.xxx.xx:5060
INVITE sip:1001 at xxx.xx.xxx.xx;user=phone SIP/2.0.
Via: SIP/2.0/UDP xxx.xx.xx.186:2054;branch=z9hG4bK-7qnms1c9aoqt;rport.
From: "Company1000" <sip:1000 at xxx.xx.xxx.xx>;tag=pslbxvhxjo.
To: <sip:1001 at xxx.xx.xxx.xx;user=phone>.
Call-ID: 3c267cac8c1f-smz6hpvv1e5h.
CSeq: 2 INVITE.
Max-Forwards: 70.
Contact: <sip:1000 at xxx.xx.xx.186:2054;line=rt3bxln1>;flow-id=1.
P-Key-Flags: keys="3".
User-Agent: snom320/7.1.33.
Accept: application/sdp.
Allow: INVITE, ACK, CANCEL, BYE, REFER, OPTIONS, NOTIFY, SUBSCRIBE,
PRACK, MESSAGE, INFO.
Allow-Events: talk, hold, refer, call-info.
Supported: timer, 100rel, replaces, from-change.
Session-Expires: 3600;refresher=uas.
Min-SE: 90.
Proxy-Authorization: Digest
username="1000",realm="xxx.xx.xxx.xx",nonce="201af2a0-af3f-11dd-af96-ebbe56552456",uri="sip:1001 at xxx.xx.xxx.xx;user=phone",qop=auth,nc=00000001,cnonce="0f67abbc",response="d984661b55085f64e3e6f93a09762eca",algorithm=MD5.
Content-Type: application/sdp.
Content-Length: 370.
.
v=0.
o=root 1618416056 1618416056 IN IP4 xxx.xx.xx.186.
s=call.
c=IN IP4 xxx.xx.xx.186.
t=0 0.
m=audio 12472 RTP/AVP 8 0 9 2 3 18 4 101.
a=rtpmap:8 pcma/8000.
a=rtpmap:0 pcmu/8000.
a=rtpmap:9 g722/8000.
a=rtpmap:2 g726-32/8000.
a=rtpmap:3 gsm/8000.
a=rtpmap:18 g729/8000.
a=rtpmap:4 g723/8000.
a=rtpmap:101 telephone-event/8000.
a=fmtp:101 0-16.
a=ptime:20.
a=sendrecv.
======================
So there is nothing special in the SDP.

Both Snom 320 phones register on the right domain (here:IP). They both
can call their mailbox etc. They are behind a NAT on different public
IPs. However calling each other doesn't work.

Sofia status profile internal
API CALL [sofia(status profile internal)] output:
=================================================================================================
Name                    internal
Domain Name             N/A
DBName                  sofia_reg_internal
Pres Hosts
Dialplan                XML
Context                 public
Challenge Realm         auto_from
RTP-IP                  xxx.xx.xxx.xx
SIP-IP                  xxx.xx.xxx.xx
URL                     sip:mod_sofia at xxx.xx.xxx.xx:5060
BIND-URL                sip:mod_sofia at xxx.xx.xxx.xx:5060
HOLD-MUSIC              local_stream://moh
CODECS                  G722,PCMU,PCMA,GSM
TEL-EVENT               101
DTMF-MODE               rfc2833
CNG                     13
SESSION-TO              0
MAX-DIALOG              0
NOMEDIA                 false
LATE-NEG                false
PROXY-MEDIA             false
AGGRESSIVENAT           false
STUN_ENABLED            true
STUN_AUTO_DISABLE       false

Registrations:
=================================================================================================
Call-ID:        3c2679b578bd-8brbg608itvr
User:           1000 at xxx.xx.xxx.xx
Contact:        "Company1000" <sip:1000 at xxx.xx.xx.186:2054;line=145ehzt5>
Agent:          snom320/7.1.33
Status:         Registered(UDP)(unknown) EXP(2008-11-10 16:45:40)
Host:           freeswitch

Call-ID:        3c2677883993-68zb6go2xoip
User:           1001 at xxx.xx.xxx.xx
Contact:        "Company1001" <sip:1001 at xxx.xx.xx.189:2054;line=hcg076gv>
Agent:          snom320/7.1.33
Status:         Registered(UDP)(unknown) EXP(2008-11-10 16:45:41)
Host:           freeswitch

=================================================================================================

What can I do?

Best regards
Peter