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Cisco SoftPhone dosn't work over FireWall

When I'm home my softphone dosn't work, we use nortel VPN software I'm also using netgear router with FW.

What port do I need to open on the FW to make softphone work ?

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Cisco Employee

Re: Cisco SoftPhone dosn't work over FireWall

You'll need to open up TCP port 2748 for CTI traffic to the CallManager.

Depending on your firewall and whether you are doing NAT or PAT, you may need to also lock down the RTP/media stream port number on the Softphone. This can be done under Network Audio Settings --> Audio Output Port. Make sure you specify an Audio Output Port between 16384 to 3276 for your RTP stream.

Thanks,

Jordy

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