How i can authenticate user of SIP server using MS Messener

1. Brekeke Product Name and version:sip2_1_6_6_1

2. Java version:JDK6

3. OS type and the version: Windows XP

4. UA (phone), gateway or other hardware/software involved:
Windows Messenger

5. Select your network pattern from http://www.brekeke-sip.com/bbs/network/ ... terns.html :

6. Your problem:
1. I m not able to authenticate SIP server user using window messenger.
2. SIP server allow me to login any user from windows messenger.
3. windows messenger User in session doesnot do chating with each other

do you get the same problem from another softphone?

check your firewall settings.. you need to open SIP port or disable the firewall.