Problem speaking with other side

[jtmakino]

Hi All!

 

Im experiencing a little strange problem.

 

Im having problem to speak to other people in my network. When I receive the call in the Express Talk the caller cant hear me. Both of us are using Express Talk.

I can hear but the other side cant.

 

But it's a little strange cause when calling to outside of network like calling to PSTN phone number it works well.

 

The problem is when we are trying to talk to each other inside the private SIP network.

 

I am using the VoIPCheap SIP service.

 

The reason for strange is because I already get sucess on talking inside the network with other friend of mine.

 

I don't know what kind of problem it can be.

 

Anyone can help me?

 

Thank you

[zaf159]

This is a firewall problem - disable / uninstall them off your pcs and router and you'll see it will work! I spent weeks sorting this out - simply zonealarm causing the problem in the end!!!

[nchtj]

beware of firewalls people ! simply turning off a firewall does nothing, the firewall is actually still active even if turned off ! the only difference when it's off is you can't configure it, and if you have new programs installed that require new ports to be opened, they won't ever work until you start the firewall up again!

 

so either configure your firewall to "allow all" traffic, or uninstall it !