487 request cancelled after 15-20 seconds on outgoing unanswered call

Question

_{Wednesday, January 18, 2012 10:12 AM}

Hi!

We are calling to a regular phone where no one answers. After approx. 15-20 secs the call gets hanged up by Lync Server with the error message "487 Request Cancelled". Why?

/Andreas

All replies (5)

_{Wednesday, January 18, 2012 3:22 PM}

You may want to take a look at this command http://technet.microsoft.com/en-us/library/gg398238.aspx

to set Set-CsTrunkConfiguration -RTCPActiveCalls $false -RTCPCallsOnHold $false

Regards Herbert Zimbizi

_{Thursday, January 19, 2012 8:21 AM}

You may want to take a look at this command http://technet.microsoft.com/en-us/library/gg398238.aspx

to set Set-CsTrunkConfiguration -RTCPActiveCalls $false -RTCPCallsOnHold $false

Regards Herbert Zimbizi

Thank you for your answer. I tried your solution, but it didn't solve the problem.

_{Friday, January 20, 2012 7:08 AM}

Hi,Andreas,

Would you please elaborate on your Lync deployment scenario?

Which gateway did you use for incoming/outgoing PSTN call?

Would you please also check your gateway to see if there are any error logs?

487 error means there is a timeout for finding correct path to route the call,please check your route setting in Lync and Gateway configuration.

Btw,did you restart Lync mediation server or related services after running Set-CsTrunkConfiguration?

Regards,

Sharon

Sharon Shen

TechNet Community Support

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_{Friday, January 20, 2012 9:26 AM}

Hi Sharon,

Thank you for your answer! In what way does it mean "timeout for finding correct path to route the call"? There is an active call with voice and no other problems with calling or voiceflow? If someone answers it works perfectly?

I did not restart the Lync mediation server, I will do that in the weekend and come back to you on monday!

Thank you

Andreas

_{Tuesday, January 31, 2012 10:15 AM}

Hi,Andreas,

Sorry for responsing you so late due to holiday.

What I mean is that the request can not be transmited to the gateway in a valid time,then Lync mediation server will send a cancel request after time is out,maybe there is a route misconfiguration for PSTN call or timeout setting too short for responsing the request.

You can read through the old thread below,hope it can give you some clews.

http://social.technet.microsoft.com/Forums/en-US/ocsedge/thread/d0da1b13-87ed-4698-bfa4-fea21781972e/