<div dir="ltr">I did not catch the port that it was receiving on, must have been a valid port as it didn't bounce anywhere that I could find in syslog.</div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Jan 19, 2016 at 4:10 PM, Anthony Holloway <span dir="ltr"><<a href="mailto:avholloway+cisco-voip@gmail.com" target="_blank">avholloway+cisco-voip@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">The Phone would offer up it's own UDP port of...in your case...32768, to CUCM, then CUCM converts this to an MGCP message and sends to the gateway. This way the gateway knows where to send RTP. So, if anything, it's the phone's fault for offering up 32768, not the gateway. Did you happen to catch what port the gateway was receiving RTP on?</div><div class="gmail_extra"><br><div class="gmail_quote"><div><div class="h5">On Tue, Jan 19, 2016 at 12:55 PM, Ed Leatherman <span dir="ltr"><<a href="mailto:ealeatherman@gmail.com" target="_blank">ealeatherman@gmail.com</a>></span> wrote:<br></div></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div class="h5"><div dir="ltr">Come to think of it, the session was between an IOS MGCP gateway and the 8945 - perhaps something the gateway is trying to send to the phone that I dont realize.</div><div class="gmail_extra"><div><div><br><div class="gmail_quote">On Tue, Jan 19, 2016 at 11:54 AM, Ryan Huff <span dir="ltr"><<a href="mailto:ryanhuff@outlook.com" target="_blank">ryanhuff@outlook.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir="ltr">
<div style="font-size:12pt;color:#000000;background-color:#ffffff;font-family:Calibri,Arial,Helvetica,sans-serif">
<p>Ed,</p>
<p><br>
</p>
<p><a title="Ctrl+Click or tap to follow the link" href="http://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/port/10_0_1/CUCM_BK_T537717B_00_tcp-port-usage-guide-100/CUCM_BK_T537717B_00_tcp-port-usage-guide-100_chapter_01.html" target="_blank">http://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/port/10_0_1/CUCM_BK_T537717B_00_tcp-port-usage-guide-100/CUCM_BK_T537717B_00_tcp-port-usage-guide-100_chapter_01.html</a><br>
</p>
<p><br>
</p>
<p>Could it be that you're seeing something from the ephemeral port range 32768 – 61000?</p>
<p><br>
</p>
<p>Thanks,<br>
</p>
<p><br>
</p>
<div>
<div style="font-size:12pt;color:#000000;background-color:#ffffff;font-family:Calibri,Arial,Helvetica,sans-serif">
= Ryan =
<p><br>
</p>
<p><br>
</p>
<p>Email: <a href="mailto:ryanthomashuff@outlook.com" target="_blank">ryanthomashuff@outlook.com</a></p>
<p>Spark: <a href="mailto:ryanthomashuff@outlook.com" target="_blank">ryanthomashuff@outlook.com</a></p>
<p>Twitter: <a href="http://twitter.com/ryanthomashuff" target="_blank">@ryanthomashuff</a><br>
</p>
<p>LinkedIn: <a href="http://linkedin.com/in/ryanthomashuff" target="_blank">ryanthomashuff</a><br>
</p>
<p>Web <a href="http://ryanthomashuff.com" target="_blank">ryanthomashuff.com</a></p>
</div>
</div>
<br>
<br>
<div style="color:rgb(0,0,0)">
<hr style="display:inline-block;width:98%">
<div dir="ltr"><font style="font-size:11pt" face="Calibri, sans-serif" color="#000000"><b>From:</b> cisco-voip <<a href="mailto:cisco-voip-bounces@puck.nether.net" target="_blank">cisco-voip-bounces@puck.nether.net</a>> on behalf of Ed Leatherman <<a href="mailto:ealeatherman@gmail.com" target="_blank">ealeatherman@gmail.com</a>><br>
<b>Sent:</b> Tuesday, January 19, 2016 11:46 AM<br>
<b>To:</b> Cisco VOIP<br>
<b>Subject:</b> [cisco-voip] RTP ports used by phones</font>
<div> </div>
</div><div><div>
<div>
<div dir="ltr">I've notice this a few times bouncing on ACL, thought it was worth asking about.
<div><br>
</div>
<div>I see in numerous documentation that CUCM uses 16384 - 32767 for RTP - the documents specifically say IP Phone to IPVMS.</div>
<div><br>
</div>
<div>I observed an 8945 Cisco phone listening on 32768 and 32769 (assuming RTP and associated RTCP) due to access list not permitting it. Is there a doc somewhere that shows different/expanded range of ports that Cisco phones will use?</div>
<div><br>
</div>
<div><br>
</div>
<div><br>
-- <br>
<div>Ed Leatherman<br>
</div>
</div>
</div>
</div>
</div></div></div>
</div>
</div>
</blockquote></div><br><br clear="all"><div><br></div></div></div><span><font color="#888888">-- <br><div>Ed Leatherman<br></div>
</font></span></div>
<br></div></div><span class="">_______________________________________________<br>
cisco-voip mailing list<br>
<a href="mailto:cisco-voip@puck.nether.net" target="_blank">cisco-voip@puck.nether.net</a><br>
<a href="https://puck.nether.net/mailman/listinfo/cisco-voip" rel="noreferrer" target="_blank">https://puck.nether.net/mailman/listinfo/cisco-voip</a><br>
<br></span></blockquote></div><br></div>
</blockquote></div><br><br clear="all"><div><br></div>-- <br><div class="gmail_signature">Ed Leatherman<br></div>
</div>