We are troubleshooting through an issue with dropped calls.
On the client side the only problem I am seeing is the following.
07/16/2008|13:52:13.078 1134:1138 ERROR :: SIP_STACK::MapDestAddressToNatInternalAddress m_pDirectPlayNATHelp is NULL. Setting *pIsDestExternalToNat to FALSE
It may be nothing but can someone explain what the means.
(We are experiencing approximately 2 to 3% dropped call rate. Random pattern of dropped calls _ ie calls can last several hours while others are dropped after 5 minutes. Out of 20 active calls one only will be dropped and typically the user can dial straight back in.
We are using the following in a pilot so lots of "moving parts"
OCS Mediation <=> Firewall using SIP fixup <=> Cisco Cube <=> Firewall using H323 fixup <=> CCM 4.13)
Thanks
Alistair
