OmniTouch 4135 cuts out for 20 seconds every 15 minutes

[burkhalp74]

Hi all,

When users join a conference call on our Lync 2013 server, through the Audiocodes gateway, on the OmniTouch 4135 device, every 15 minutes on the dot the phone goes silent for 20 seconds. Nothing shows up in a Wireshark trace on the phone. In the Lync logs, this is what I see:

TL_INFO(TF_PROTOCOL) [0]154C.27A0::02/04/2014-16:07:54.025.01607b1e (S4,SipMessage.DataLoggingHelper:1860.idx(774))[2947565861]
<<<<<<<<<<<<Incoming SipMessage c=[<SipTcpConnection_276531>], X.X.X.X:5068<-X.X.X.X:39562
INVITE sip:m-lync.fritzii.local:5068;transport=tcp;maddr=X.X.X.X;ms-opaque=fa5d4c8259708853 SIP/2.0
FROM: "Conference B Roo" <sip:XXXXXXXXXX@X.X.X.X;user=phone>;tag=1c230891104
TO: <sip:XXXXXXXXXX@X.X.X.X;user=phone>;tag=7b164789;epid=E781DFD041
CSEQ: 3 INVITE
CALL-ID: 23079520732201418920@X.X.X.X
MAX-FORWARDS: 10
VIA: SIP/2.0/TCP X.X.X.X:5060;branch=z9hG4bKac1673088723;alias
CONTACT: <sip:XXXXXXXXXX@X.X.X.X:5060;transport=tcp>
CONTENT-LENGTH: 205
SUPPORTED: 100rel,timer,replaces,path
USER-AGENT: Mediant 800/v.6.60A.245
CONTENT-TYPE: application/sdp
P-ASSERTED-IDENTITY: "Conference B Roo" <sip:XXXXXXXXXX@X.X.X.X;user=phone>
Session-Expires: 1800;refresher=uac
Min-SE: 900

v=0
o=OXE 228174171 228174139 IN IP4 X.X.X.X
s=abs
c=IN IP4 X.X.X.X
t=0 0
m=audio 6020 RTP/AVP 0 97
a=sendrecv
a=rtpmap:0 PCMU/8000
a=ptime:20
a=maxptime:30
a=rtpmap:97 telephone-event/8000

------------EndOfIncoming SipMessage

TL_INFO(TF_PROTOCOL) [0]154C.2708::02/04/2014-16:07:54.025.01607b58 (S4,SipMessage.DataLoggingHelper:1860.idx(774))[2947565861]
>>>>>>>>>>>>Outgoing SipMessage c=[<SipTcpConnection_276531>], X.X.X.X:5068->X.X.X.X:39562
SIP/2.0 100 Trying
FROM: "Conference B Roo"<sip:XXXXXXXXXX@X.X.X.X;user=phone>;tag=1c230891104
TO: <sip:XXXXXXXXXX@X.X.X.X;user=phone>;tag=7b164789;epid=E781DFD041
CSEQ: 3 INVITE
CALL-ID: 23079520732201418920@X.X.X.X
VIA: SIP/2.0/TCP X.X.X.X:5060;branch=z9hG4bKac1673088723;alias
CONTENT-LENGTH: 0


------------EndOfOutgoing SipMessage
TL_INFO(TF_PROTOCOL) [0]154C.2708::02/04/2014-16:07:54.025.01607b79 (MediationServer,GatewaySDP.ParseSdpOffer:2281.idx(1032))[56842166]56842166Receive offer from Gateway, SDP is: v=0


o=OXE 228174171 228174139 IN IP4 X.X.X.X
s=abs
c=IN IP4 X.X.X.X
t=0 0
m=audio 6020 RTP/AVP 0 97
a=sendrecv
a=rtpmap:0 PCMU/8000
a=ptime:20
a=maxptime:30
a=rtpmap:97 telephone-event/8000
NULL
TL_INFO(TF_COMPONENT) [0]154C.2708::02/04/2014-16:07:54.025.01607b7a (MediationServer,MediaAsyncResultT<Ex>.MediaAsyncResult:123.idx(368))(00000000034E1D4C)<RenegotiationAsyncResult_34E1D4C> Owner: <null>, Microsoft.RTC.MediationServerCore.RenegotiationAsyncResult created. External callback:<null>, OperationId: NULL
TL_INFO(TF_COMPONENT) [0]154C.2708::02/04/2014-16:07:54.025.01607b7b (MediationServer,MediaAsyncResultT<Ex>.MediaAsyncResult:123.idx(368))(0000000003DC541F)<ApplyMediaLineWorkitemAsyncResult_3DC541F> Owner: <null>, Microsoft.RTC.MediationServerCore.ApplyMediaLineWorkitemAsyncResult created. External callback:<AsyncCallback_6A1B31>, OperationId: NULL
TL_INFO(TF_COMPONENT) [0]154C.2708::02/04/2014-16:07:54.026.01607b82 (MediationServer,MediaAsyncResultT<Ex>.MakeCallback:123.idx(696))(0000000003DC541F)<ApplyMediaLineWorkitemAsyncResult_3DC541F> Owner: <null> External callback=<AsyncCallback_6A1B31>
TL_INFO(TF_COMPONENT) [0]154C.2708::02/04/2014-16:07:54.026.01607b83 (MediationServer,MediaAsyncResultT<Ex>.MakeCallback:123.idx(696))(00000000034E1D4C)<RenegotiationAsyncResult_34E1D4C> Owner: <null> External callback=<null>
TL_INFO(TF_COMPONENT) [0]154C.2708::02/04/2014-16:07:54.026.01607b84 (MediationServer,ProxyCall.ProcessGatewayCallStateChanged:871.idx(827))[66145477]66145477Process Gateway call state changed: OfferNULL
TL_INFO(TF_COMPONENT) [0]154C.2708::02/04/2014-16:07:54.026.01607b85 (MediationServer,ProxyCall.ProcessGatewayCallStateChanged:871.idx(1118))[66145477]66145477Received Gateway Offer with Audio Direction: Sendrecv, video direction Rejected .NULL
TL_INFO(TF_COMPONENT) [0]154C.2708::02/04/2014-16:07:54.026.01607b86 (MediationServer,MediaAsyncResultT<Ex>.MediaAsyncResult:123.idx(368))(0000000003131513)<GenerateOfferWorkitemAsyncResult_3131513> Owner: <MediaSessionAgent_2C0D148>, Microsoft.Rtc.Collaboration.AudioVideo.MediaSessionAgent+GenerateOfferWorkitemAsyncResult created. External callback:<AsyncCallback_6A1B31>, OperationId: NULL
TL_INFO(TF_COMPONENT) [0]154C.2708::02/04/2014-16:07:54.026.01607b87 (MediationServer,MediaSessionAgent.ProcessGenerateOfferWorkitem:738.idx(2418))(0000000002C0D148)66145477 Running workitem <GenerateOfferWorkitemAsyncResult_3131513>, state: Initial
$$END-MEDIATIONSERVER

TL_INFO(TF_PROTOCOL) [0]154C.2708::02/04/2014-16:07:54.026.01607b8a (MediationServer,ProxySDP.GetOffer:2804.idx(53))[66145477]66145477Send invite to Proxy, SDP is: v=0


o=- 482 2 IN IP4 X.X.X.X
s=session
c=IN IP4 X.X.X.X
b=CT:10000000
t=0 0
m=audio 55752 RTP/SAVP 0 8 115 13 118 97 101
c=IN IP4 X.X.X.X
a=rtcp:55753
a=ice-ufrag:yg43
a=ice-pwd:1iItDoiECF+wYue0mBUEQ9PR
a=candidate:1 1 UDP 2130706431 X.X.X.X 55752 typ host
a=candidate:1 2 UDP 2130705918 X.X.X.X 55753 typ host
a=remote-candidates:1 X.X.X.X 57430 2 X.X.X.X 57431
a=label:main-audio
a=cryptoscale:1 client AES_CM_128_HMAC_SHA1_80 inline:fqhxZsH28JMrZPH/bCIB+B4i+RMOZKFvtOYradi0|2^31|1:1
a=rtpmap:0 PCMU/8000
a=rtpmap:8 PCMA/8000
a=rtpmap:115 x-msrta/8000
a=fmtp:115 bitrate=11800
a=rtpmap:13 CN/8000
a=rtpmap:118 CN/16000
a=rtpmap:97 RED/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-16,36
NULL
TL_INFO(TF_COMPONENT) [0]154C.2708::02/04/2014-16:07:54.026.01607b9d (S4,NegotiateLogic.constructor:318.idx(261))constructed
TL_INFO(TF_COMPONENT) [0]154C.2708::02/04/2014-16:07:54.026.01607b9e (S4,NegotiateLogic.constructor:318.idx(280))constructed
TL_INFO(TF_COMPONENT) [0]154C.2708::02/04/2014-16:07:54.026.01607ba0 (S4,SipTlsConnection.set_DontSendNegotiateRequest:908.idx(3279))(000000000301AA61)Negotiate Request = False


Can anyone attempt to shed light on the situation, or provide some ideas for what I can test next?