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Lync - Outbound calls - no audio in one direction

    Question

  • Maybe somebody had faced this...

    I got a Lync Server working just fine, connected to a Audiocodes MP-118.

    Everythig goes fine on incoming calls. The user answers and the person outside and inside can talk normaly.

    The problem is on outgoing calls.

    When internal users calls a external number, the call is performed just fine, but the detination person cannot hear audio from the lync user, but the lync user can hear the destination person audio,

    Everything else is just working fine...

    Ideas, please..

    Thanks

    Luiz Vianna

     

     

    Saturday, March 26, 2011 7:58 PM

Answers

All replies

  • Liuz,

    Any firewall on the media path which may block traffic?

    Regards,

    Johan


    Exchange-blog: www.johanveldhuis.nl
    Sunday, March 27, 2011 6:14 PM
  • Johan,

    Thanks for your response...

    I checked that, and to eliminate this issue I had stoped Windows Firewall in all NICs before I faced that problem.

    Regards,

    Luiz

    Monday, March 28, 2011 12:23 PM
  • Liuz,

    OK and when having a look with for example wireshark what do you see then ?

    Regards,

    Johan


    Exchange-blog: www.johanveldhuis.nl
    Monday, March 28, 2011 12:37 PM
  • Johan,

    I just did that. Got wireshark from my machine and LyncServer trying outbound calls.

    I did not find any package that got my atention or that could give me any clue. Some checksums errors only.

    I did, again, use the Lync Logging tool and there are only 2 errors messages :

    - (0000000002D5DF10)Failed to process incoming message: Invalid Contact header: parsing error; suspect character: ' '

    -  Exit - State manager failed to process response. Returned 0xC3E93C09(PE_E_TRANSACTION_DOES_NOT_EXIST)

    Regards,

    Luiz

    Monday, March 28, 2011 2:11 PM
  • Luiz,

    Is it possible to send your config of both your Lync and Audiocodes and the log files? Or share it via a fileshare service?

    Regards,

    Johan


    Exchange-blog: www.johanveldhuis.nl
    Monday, March 28, 2011 2:15 PM
  • Johan,

    no problems at all...

    www.multconnect.com.br/files/lyncFiles.zip

    Regards,

    Luiz

    Monday, March 28, 2011 2:32 PM
  • Luiz,

    I looked at the files and one of the things I see is this error:

    Reason: SIP ;cause=405 ;text="405 Method Not Allowed"

    Which options are configured on the trunk configuration in Lync?

    Besides this can you described your topology what is connected to the Audiocodes. I see a proxy is specified can you tell me why you did this. I have a MP118 also in my lab and have not configured a proxy but perform routing based on tel to IP routing.

    Regards,

    Johan


    Exchange-blog: www.johanveldhuis.nl
    Monday, March 28, 2011 3:10 PM
  • Thanks.

    Our physical topology is very simple:

    PSTN Lines --> MP118 -->  (nic1) Lync Server (nic2) --> Desktops (Lync clients)

    I saw the proxy config, maybe is not needed in fact. I was not giving much atention to this because I thought that was not a routing issue, because calls are being routed fine. For testing proposes I disabled Proxy, and tried again with still no in->out audio on outbound calls.

    On Lync Trunk its the default config:

    Global / max dialogs :20 / Encryption: required / Enable media bypass:disabled / Centralized media and enable refer : enabled

    Regards,

    Luiz

    Monday, March 28, 2011 3:55 PM
  • Look at this "CONTACT: <sip:Tronco Chave@10.1.10.10:5068;transport=tcp>". Note the white space between Tronco and Chave. According RFC, CONTACT header cannot contain white space and this is why we have 405 Method not allowed.

     

    Drago

     


    http://ocsdude.blogspot.com
    Monday, March 28, 2011 5:23 PM
  • Drago,

    You are just right.

    On my gateway, I have to name each End Point Phone Number. In fact, I did not realized that I had filled with spaces on it calling it as "Tronco Chave".

    With your answer I named it as "TroncoChave" with no spaces and worked like a charm.

    I would like to thank you for this "light" after "days of darkness" and thanks Joan as well for his sugestions. :)

    Thank yout guys for taking your time to help me out!!

    Regards,

    Luiz

    Monday, March 28, 2011 5:51 PM
  • hi.

     

    Im trying to connect lync server  to a Audiocodes MP-118 can u plz tell me da way u did ?

     

    Regards. 

    Thursday, March 31, 2011 2:54 AM
  • Rajith,

    The Lync Server now can be the same machine than mediation server. So I got a server where Lync and Mediation is both together.

    There I have 2 NICs, one directed connected to Gateway (cross-cable) and the other connect to our internal backbone (where Exchange is also connected for Auto Attendant).

    Physically is that way, I don´t now exactly what kind of dificulty you are facing.,...

     

    Regards,

    Luiz

     

    Thursday, March 31, 2011 2:04 PM
  • Luiz

    I need to connect some analog phones with the LYNC and then i have to make  calls using lync client application to the analog phones, so can u tell me how to configure Audiocodes MP-118 device ? Physically and also software vise.

     

    Regards.

    Rajith

     


    Friday, April 01, 2011 2:41 AM
  • Rajith,

    I was in the same situation than you months ago.

    Phisicaly the connection is very simple, like a posted above:

    PSTN Analógic Lines --directed connected to--> MP118 (ports 5,6,7,8) --cross-cable-->  (nic1) Lync Server (nic2) --to internal swith--> Desktops (Lync clients)

    For Audiocodes configuration, I started using this link that helped me to perform the main configuration of the MP118:

    http://blogs.technet.com/b/daveh/archive/2009/02/01/integrating-audiocodes-mp-114-mp-118-media-gateways-with-microsoft-unified-communications-products.aspx

    All the main principles of MP-118 setup are there, just need to acomodate to your personal cenario.

    About Lync, look for installation and configuration guides at Microsoft, because is too muth explanation for a post in a Forum. 

    Here goes some sugestions of sites that could help you:

    http://www.ocspedia.com/fe/Install_Microsoft_Lync_Server_2010.aspx?ArticleID=103

    http://imaucblog.com/archive/2010/09/15/step-by-step-microsoft-lync-2010-consolidated-standard-server-install-guide/

    http://grahamwalsh.posterous.com/step-by-step-guide-to-installing-microsoft-ly

    After that, have a look on enabling user for Enterpise Voice and Dial Plan. Sugestion of site:

    http://blog.schertz.name/2010/10/lync2010rc-deployment-part3/

    I think that with these informations and your effort, you will find the way..

    Regards,

    Luiz

     

    Friday, April 01, 2011 12:58 PM
  • Hi Luiz,

     

    Thanx man i will try this and let u know . thank u very much. you save my day.....

    Regards.

    Rajith.

    Saturday, April 02, 2011 2:15 AM
  • Hi Luiz,

     

    Can plz tell me the way to connect Audiocodes MP-118 device if im using virtual Pc's . Im having 3 Hyper-v pc's , AD,Exchange and Lync,

    and Thanx a lot for the help .

     

    Regards 

    Rajith

    Saturday, April 02, 2011 3:46 AM
  • Rajith,

    See if this will help: http://ocsdude.blogspot.com/2011/04/analog-phone-support-with-lync-2010.html

    MP-114 but... pretty much same.

     

    Drago


    http://ocsdude.blogspot.com
    Saturday, April 02, 2011 3:50 AM
  • hi Drago,

     

    hay thanx man i think this will suite for my requirement. again thanx a lot man..

     

    Regards,

    Rajith

    Saturday, April 02, 2011 4:14 AM
  • Hi,

    i did the configurations according to ur guide. but the states of the default gateway is not available. can u plz help me with this ?

    Regards.

     

    Sunday, April 03, 2011 10:05 AM
  • You can receive “Gateway is not available” for many reasons.

    Mediation service has not been restarted after adding the TCP protocol in Topology builder and publishing the topology. Lync, as OCs, does not support dynamic port change (but we essentially “changed” a port number). This can be observed in the Even Viewer, Lync Server log.

    Port mismatch:

    1.       Lync is sending traffic to port to which the Gateway (MP-1xx) does not listen on.

    2.       MP is sending traffic to port different from Lync listening port for TCP traffic

    Dyslexia (as mineJ). While writing the guide, I entered 10.5.0.11 as Gateway IP address but provisioned 10.8.0.11 on the MP and wasted one hour troubleshooting my own mistake…

    And of course, simple network related problem (routing for example).

     

    Drago


    http://ocsdude.blogspot.com
    Sunday, April 03, 2011 2:39 PM
  • hi Drago,

     

    the error shows in my event logger is error event ID 25051 source LS mediation server. i dont understand what it says . Can u please help me with this ?

     

    Regards,

    Rajith

    Monday, April 04, 2011 5:15 AM
  • Rajith,

    Start a new tread and let's go from there.

     

    Drago

     


    http://ocsdude.blogspot.com
    Monday, April 04, 2011 1:18 PM
  • Hi drago,

     

    Thanx 4 ur kind concern Drago. Im in  deep trouble. 

    Can u please give me step by step instructions to connect analog PBX and LYNC server. Im having a VoipGatway call audioCodes MP-118 , and it  has 8 FXO ports.

    i have install LYNC server and a AD and a Exchange server.

    Can you guide me to configure this ?

     

    Regards,

    Rajith Pathiraja. 

    Tuesday, April 05, 2011 3:08 AM
  • Rajith,

    I see couple of problems here.

    1.       You are referring to “connect analog PBX and LYNC server”

    2.       Then, you talk about MP-118 (Analog Gateway) with 8 FXO ports (FXO connects phone lines, not analog phones)

    I hope I am wrong, but looks like you have problem on conceptual level understanding how it works. If this is the case, I advise you to look for Lync Professional System Integrator or at least, Audiocodes Support.

     

    Drago


    http://ocsdude.blogspot.com
    Tuesday, April 05, 2011 12:28 PM