<br>I would think that your IP phone would send to the UDP range 16384-32767 on the gateway for RTP traffic rather than port 2000. It sounds like the call is already setup.<br><br><br><div><span class="gmail_quote">On 7/5/07,
<b class="gmail_sendername">Lelio Fulgenzi</b> <<a href="mailto:lelio@uoguelph.ca">lelio@uoguelph.ca</a>> wrote:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
That's was our understanding, TCP 2000.<br><br>I don't think we've ever heard about the sequential ports though. We've only<br>opened up TCP 2000.<br><br>----- Original Message -----<br>From: "Matt Slaga (US)" <
<a href="mailto:Matt.Slaga@us.didata.com">Matt.Slaga@us.didata.com</a>><br>To: "Paul Choi" <<a href="mailto:asobihoudai@yahoo.com">asobihoudai@yahoo.com</a>>; "Lelio Fulgenzi"<br><<a href="mailto:lelio@uoguelph.ca">
lelio@uoguelph.ca</a>>; <<a href="mailto:cisco-voip@puck.nether.net">cisco-voip@puck.nether.net</a>><br>Sent: Thursday, July 05, 2007 9:09 PM<br>Subject: RE: [cisco-voip] UDP 2000 from SRST router to IP phone?<br>
<br><br>> Cisco contends that SCCP uses TCP 2000 - 2002 (one port for each<br>> CallManager in it's failover list). Not sure about UDP 2000.<br>><br>> -----Original Message-----<br>> From: <a href="mailto:cisco-voip-bounces@puck.nether.net">
cisco-voip-bounces@puck.nether.net</a><br>> [mailto:<a href="mailto:cisco-voip-bounces@puck.nether.net">cisco-voip-bounces@puck.nether.net</a>] On Behalf Of Paul Choi<br>> Sent: Thursday, July 05, 2007 9:01 PM<br>> To: Lelio Fulgenzi;
<a href="mailto:cisco-voip@puck.nether.net">cisco-voip@puck.nether.net</a><br>> Subject: Re: [cisco-voip] UDP 2000 from SRST router to IP phone?<br>><br>> I could be full of shit but I'm pretty sure that SCCP
<br>> uses UDP 2000 to communicate with CCM.<br>><br>><br>> --- Lelio Fulgenzi <<a href="mailto:lelio@uoguelph.ca">lelio@uoguelph.ca</a>> wrote:<br>><br>>> We're just setting up some ACLs and found that while
<br>>> in SRST mode, the SRST router (or at least the<br>>> loopback address that we bind MGCP to) tried to<br>>> communicate to the IP phone that was registered. We<br>>> had not allowed for this and as a result, the call
<br>>> out the gateway was one way audio. But we didn't see<br>>> any other denies come out of the logs.<br>>><br>>> I see that in the SRST config, it asks for a port,<br>>> and it is 2000. But it's still wierd to see UDP 2000
<br>>> being used.<br>>><br>>> Can anyone comment?<br>>><br>>> 2d08h: %SEC-6-IPACCESSLOGP: list voice_in_kc denied<br>>> udp 10.104.122.141(17624) -> 10.104.34.48(2000), 1<br>>> packet
<br>>><br>>> ^- IP phone ^- SRST router<br>>><br>>><br>>><br>> ------------------------------------------------------------------------<br>> --------<br>>> Lelio Fulgenzi,
B.A.<br>>> Senior Analyst (CCS) * University of Guelph *<br>>> Guelph, Ontario N1G 2W1<br>>> (519) 824-4120 x56354 (519) 767-1060 FAX (JNHN)<br>>><br>> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
<br>>><br>>> "Buffalo buffalo Buffalo buffalo buffalo buffalo<br>>> Buffalo buffalo." WJR<br>>> > _______________________________________________<br>>> cisco-voip mailing list
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Senior Voice Engineer<br>West Virginia University<br>Telecommunications and Network Operations