No Audio V15

[megaadam]

Hey people!

A newbie to 3cx - I've just installed 3CX v15 and am having an issue with no audio or DTMF passing from client to client (I've tried a variety of clients (3cx to 3cx, xlite, polycom ip335). Internal to Internal or Internal to external.
The call is connecting, hanging up and passing signal.
However I can hear hold music, IVRS and any system generated audio..
I've ensured that the "PBX handles audio" checkbox is ticked and the two under it are not for each of the clients.
No errors are showing in the error log.

I purged the log and started it again for a single call, as per below;

11/09/2016 3:13:48 PM - [CM505001]: Endpoint Extn:105: Device info: Device Not Identified: User Agent not matched; Capabilities:[reinvite, replaces, able-no-sdp, recvonly] UserAgent: [3CXPhone for Windows 15.0.59381.0] PBX contact: [sip:[email protected]:5060]
11/09/2016 3:13:48 PM - [CM503002]: Call(C:12): Alerting Extn:105 by contact <sip:[email protected]:57178>
11/09/2016 3:13:48 PM - [CM503025]: Call(C:12): Calling T:Extn:105@[Dev:sip:[email protected]:57178;rinstance=0-340f177c70724fa8ac8d947d7eb401d3;ob] for L:12.1[Extn]
11/09/2016 3:13:48 PM - [CM503027]: Call(C:12): From: Extn:101 ("Adam L" <sip:[email protected]:5060>) to T:Extn:105@[Dev:sip:[email protected]:57178;rinstance=0-340f177c70724fa8ac8d947d7eb401d3;ob]
11/09/2016 3:13:48 PM - [CM503004]: Call(C:12): Route 1: from L:12.1[Extn] to T:Extn:105@[Dev:sip:[email protected]:57178;rinstance=0-340f177c70724fa8ac8d947d7eb401d3;ob]
11/09/2016 3:13:48 PM - [Flow] No office hours set, office hours assumed
11/09/2016 3:13:48 PM - [Flow] Call(C:12): has built target endpoint: Extn:105 for call from L:12.1[Extn]
11/09/2016 3:13:48 PM - [Flow] Target endpoint for 105 is Extn:105
11/09/2016 3:13:48 PM - [CM503010]: Call(C:12): Making route(s) from Extn:101 to <sip:[email protected]:5060>
11/09/2016 3:13:48 PM - [CM505001]: Endpoint Extn:101: Device info: Device Not Identified: User Agent not matched; Capabilities:[reinvite, replaces, able-no-sdp, recvonly] UserAgent: [3CXPhone for iPhone 15.1.1.22] PBX contact: [sip:[email protected]:5060]
11/09/2016 3:13:48 PM - [CM500002]: Call(C:12): Info on incoming INVITE from Extn:101:

Invite-IN Recv Req INVITE from 172.16.10.88:55557 tid=PjsXI0DYtKPUHxXHbHjhZzK0vj5mJZ-EEu Call-ID=DSb3ptlxGMi6WuqeowOykq857isF1Gzw:

INVITE sip:[email protected]:5060 SIP/2.0

Via: SIP/2.0/UDP 172.16.10.88:55557;rport=55557;branch=z9hG4bKPjsXI0DYtKPUHxXHbHjhZzK0vj5mJZ-EEu

Max-Forwards: 70

Contact: "Adam P" <sip:[email protected]:55557;inst="910ACA";rinstance=0-ucklvx54cflesxo4no4z7acrzrltdxkg;ob>

To: <sip:[email protected]:5060>

From: "Adam P"<sip:[email protected]:5060>;tag=fBX-hXnLjjfIa0-Ud-etXxj8XZBC9sKQ

Call-ID: DSb3ptlxGMi6WuqeowOykq857isF1Gzw

CSeq: 23443 INVITE

Session-Expires: 1800

Min-SE: 90

Allow: PRACK, INVITE, ACK, BYE, CANCEL, UPDATE, INFO, SUBSCRIBE, NOTIFY, REFER, MESSAGE, OPTIONS

Content-Type: application/sdp

Proxy-Authorization: Digest username="101",realm="3CXPhoneSystem",nonce="414d535c0e333a8425:cedf651fd64bd3287105f5a8b69ec438",uri="sip:[email protected]:5060",response="aae18d9faae24996b96e4a2ab9a0b77f",algorithm=MD5

Supported: replaces, 100rel, timer, norefersub

User-Agent: 3CXPhone for iPhone 15.1.1.22

Content-Length: 310



v=0

o=- 3687655428 3687655428 IN IP4 172.16.10.88

s=pjmedia

b=AS:84

t=0 0

a=X-nat:0

m=audio 4002 RTP/AVP 3 0 8 101

c=IN IP4 172.16.10.88

b=TIAS:64000

b=AS:84

a=rtcp:4003

a=sendrecv

a=rtpmap:3 GSM/8000

a=rtpmap:0 PCMU/8000

a=rtpmap:8 PCMA/8000

a=rtpmap:101 telephone-event/8000

a=fmtp:101 0-15

11/09/2016 3:13:48 PM - [CM503001]: Call(C:12): Incoming call from Extn:101 to <sip:[email protected]:5060>

Please help!