I configured my TMG server to allow zoiper softphone to make SIP calls but i have a problem when i tried to initiate the call the end user hear me and i can hear him after 28 second from starting the call, but if the end user initiate the call from his side
he can hear me and i can hear him from starting the call.
Please help me to avoid this issue with correct configuration.
Microsoft is conducting an online survey to understand your opinion of the Technet Web site. If you choose to participate, the online survey will be presented to you when you leave the Technet Web site.