Netbooks, PDA and Phones Thread, MS Lync Server - I need to hold and unhold calls before the recipient can hear me :'( in Technical; Lync is awesome and I've nearly got everything the way I want it but I have hit a stumbling block.
23rd November 2010, 12:55 PM #1
MS Lync Server - I need to hold and unhold calls before the recipient can hear me :'(
Lync is awesome and I've nearly got everything the way I want it but I have hit a stumbling block.
Using the Test-CsPstnOutboundCall cmdlet, everything seems fine. Testing an outbound call from either Lync or a Snom 300 handset hits a snag though. The Lync user initiating the call can hear everything in all its HD glory but the remote party cannot hear the Lync user.
By placing the call on hold and then taking it off hold, the problem vanishes. DTMF tones generated by button presses can also be heard... it just seems to be the voice audio.
The setup is a single Lync Standard Edition server with Mediation Server co-located using a VegaStream Vega 50 Europa media gateway to connect to an ISDN-2e line.
IDG Tech News
23rd November 2010, 12:57 PM #2
Use wireshark to capture the traffic while you're placing the call.
obviously somethings going wrong that gets negotiated later - maybe a codec mismatch with the gateway?
23rd November 2010, 01:01 PM #3
Watching the gateway logs (live) there is no renegotiation of codecs.
Originally Posted by Domino
I have also tried every permiatation of the three trunk settings.... 'enable media bypass', 'centralized media processing' and 'enable refer support'.
Should I be traffic capturing bewteen the client and server or the server and the gateway? Or should I just find a fine adjusting tool?
23rd November 2010, 01:54 PM #4
I'd start with client -> server
If there's no renegotiation of codecs maybe lync is reporting to be talking one when its actually another? or a subset? Can you force a codec on the gateway?
23rd November 2010, 02:21 PM #5
I believe so... it is currently using g711Ulaw64k after first trying g711Alaw64k.
Originally Posted by Domino
23rd November 2010, 02:52 PM #6
It gets better... playing with codec nonsense has broken it further!
23rd November 2010, 04:01 PM #7
If you wireshark the client -> server traffic can you pull the voip audio?
If you can hear both sides of the convo in that it might tell you where the call issue lies
23rd November 2010, 04:57 PM #8
I have wiresharked the connection and can see data passing between the client and server when a call is initiated. This is what I would have expected since internal calls work :-/
Time for more Wiresharking I think
24th November 2010, 02:58 PM #9
Well I've now unbroken it enough to get it back to how it was before... single-sided conversation until you hold/unhold
24th November 2010, 04:53 PM #10
My Wireshark trace didn't show anything up and traffic between the parties looked fine.
Surely somebody knows something about OCS/Lync?
8th March 2013, 06:44 PM #11
- Rep Power
I had the exact same issue with 1 single user. We currently have aprox. 200 Lync users and only 1 user (even in her department) had this exact problem. I figured it was somethingin her local settings.. I uninstalled the Lync client and reinstalled it and the problem went away.
8th March 2013, 06:54 PM #12
Perhaps Ric fixed it 2 years ago allthough he never posted a solution.
8th March 2013, 09:13 PM #13
- Rep Power
Actually, I fixed this yesterday. I'm a Lync amateur.
11th March 2013, 09:04 PM #14
I'm sure @Ric_ did fix it and more besides and has moved on and manages a global Lync system across the world
11th March 2013, 09:15 PM #15
I did fix it... It turned out to be a random fault on the gateway device for me.
In future I would never use anything other than a Asterisk box and line cards as the gateway.
By TechMonkey in forum Windows
Last Post: 13th August 2010, 02:50 PM
By gl3nnym in forum Windows Server 2000/2003
Last Post: 12th August 2010, 06:49 PM
By CyberNerd in forum Windows
Last Post: 8th October 2009, 11:18 PM
Last Post: 30th October 2008, 01:27 PM
By adamf in forum Windows
Last Post: 19th April 2008, 03:33 PM
Users Browsing this Thread
There are currently 1 users browsing this thread. (0 members and 1 guests)
Tags for this Thread