[cisco-voip] SCCP through PIX cont'

[Wes Sisk]

DTMF is carried through the signaling path (Skinny).  Only audio is  
carried thorugh the media path.  Without fixup enabled PIX will not  
open the ports for the media stream.

/Wes
On Apr 6, 2006, at 11:25 AM, Voll, Scott wrote:

Why would DTMF work and not audio?



Scott



From: cisco-voip-bounces at puck.nether.net [mailto:cisco-voip- 
bounces at puck.nether.net] On Behalf Of Voll, Scott
Sent: Thursday, April 06, 2006 8:24 AM
To: cisco-voip at puck.nether.net
Subject: Re: [cisco-voip] SCCP through PIX cont'



I have set the configuration up like this:



IP Phone --- (public)  -- PIX (6.3) --- (Inside) CM / IP Phones/ VGW.



I was able to get the phone up and working but I’m getting one way  
audio in the direction of the inside is not working.



What can I do to fix it?



Thanks



Scott



From: cisco-voip-bounces at puck.nether.net [mailto:cisco-voip- 
bounces at puck.nether.net] On Behalf Of Voll, Scott
Sent: Thursday, April 06, 2006 7:16 AM
To: cisco-voip at puck.nether.net
Subject: [cisco-voip] SCCP through PIX



Has anyone setup a phone outside your network to work through a pix  
firewall?



I would like to setup a 7940 just on the other side of our PIX.  So I  
don’t have a way to VPN it in.  I would like to just permit IP  
address to CM on the firewall but was wondering if some fixup or Nat  
to the CM will screw it up.



Thanks



Scott

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