Monday, 20 February 2012

Parked calls drop after 30 seconds

Dropped parked calls are due to a RTCP timeout.
Open Lync Powershell to view Trunk configuration
Get-CsTrunkConfiguration
SipResponseCodeTranslationRulesList : {}
Description                         :
ConcentratedTopology                : False
EnableBypass                        : False
EnableMobileTrunkSupport            : False
EnableReferSupport                  : False
EnableSessionTimer                  : True
EnableSignalBoost                   : False
MaxEarlyDialogs                     : 20
RemovePlusFromUri                   : False
RTCPActiveCalls                     : True
RTCPCallsOnHold                     : True
SRTPMode                            : Optional
EnablePIDFLOSupport                 : False
to resolve the timeout, open Lync Powershell and enter
Set-CsTrunkConfiguration –Identity <TrunkName> –RTCPActiveCalls $false –RTCPCallsOnHold $false
SipResponseCodeTranslationRulesList : {}
Description                         :
ConcentratedTopology                : False
EnableBypass                        : False
EnableMobileTrunkSupport            : False
EnableReferSupport                  : False
EnableSessionTimer                  : True
EnableSignalBoost                   : False
MaxEarlyDialogs                     : 20
RemovePlusFromUri                   : False
RTCPActiveCalls                     : False
RTCPCallsOnHold                     : False

SRTPMode                            : Optional
EnablePIDFLOSupport                 : False

Wait for Topology replication and test call park.

2 comments:

  1. Hi I have tried disabling the RTCPActiveCalls and RTCPCallsOnHold timers, but it did not help. Any suggestions? I have TLS/SRTP connnection between mediation server and its PSTN gateway

    Thanks

    ReplyDelete