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PIX 515e Problem with VoIP

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IOS: 6.2.2
fixup protocl sip 5060 is in the config

1 - After placing a call on hold...when I pick it up... usually the
party I called can not hear me, but I can hear them. Sometimes
placing them back on hold will resolve the issue, sometimes not.

2 - MWI Lights on phones do not work behind the PIX firewall. What do I
need to do to make this work? It works behind d-links, netgears, and
when on the wide open Internet.

3 - When placing a call from a VoIP phone behind the PIX firewall, the
rest of the network seems to go "unavailable". When I stop the call
the firewall starts passing other traffic again.

PIX is a 515e
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What encryption are you using?

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      05-08-2006 Removed) wrote:
> What encryption are you using?

I'm sorry I don't understand the question. I'm not running ANY
encryption. No VPN. It's just a firewall with a DMZ, INSIDE, and
OUTSIDE. The VOIP phone is on the INSIDE going to the OUTSIDE when I
make calls.
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