Cisco Systems TES301 manual Advanced

VoIP Settings

Advanced

If the TES301 is behind a firewall, you can select NAT Traversal mode and enter the necessary information obtained from your service provider, this function may help traverse firewall and provide voice service normally. The Codec Settings fields allow you to change the setting used in a voice call. Dual-tone multi-frequency signaling (DTMF) Settings provide a method to transmit digital keys pressed during voice calls.

1From the TES301 dashboard, click the Change Settings button located in the VoIP Settings cell.

2Do you want to use the NAT Traversal Mode feature?

If no, select None from the NAT Traversal Mode drop-down menu; then, skip to the last step.

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