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Firewall between Voice Gateway and Cisco IP Phones

We are installing Remote Call centre for our existing Hosted IPCC setup. The remote end will have Voice Gateway (AS5350), CCM & IP Phones and ICM PG's

We would like to seek input from the team whether it is advicable to have a Firewall (PIX) in between the Voice Gateway and the IP Phones.

Your valuable input in this regard will be appreciated.

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Re: Firewall between Voice Gateway and Cisco IP Phones

You will find the ports that need to be open for MGCP in the following list, The MGCP and SCCP ports are standard.

PROTOCOL PORTS PROTOCOL

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

H.323 1719,1720 TCP

SKINNY client 2000 TCP

SKINNY analog gw 2001 TCP

SKINNY digital gw 2002 TCP

MGCP Listen Port 2427 TCP

MGCP Keep-alive Port 2428 TCP

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