you are correct; the long-held suspicion is that the mgcp between the pw and mg has proprietary extensions; using wireshark to sniff the protocol would be the first step; would need cold start, warm start, and normal operations captures; normal ops would contain lot's of normal and abnormal call scenarios; what's been missing for a long time is someone with the pw that could provide captures of the protocol to the mg<div>
<br></div><div>however, i'd be more concerned about the legal aspects of such a project; without effort one finds:
<a href="http://chillingeffects.org/reverse/faq.cgi">http://chillingeffects.org/reverse/faq.cgi</a> </div><div><br></div><div>the motivation for using brand X MG is to make something big; testing something big and deploying something big makes test case count and complexity go up rapidly; developing big switches at lucent, nortel, cisco, siemens, alcatel, ericsson enjoyed huge resources for testing; the linux kernel has a huge testing base because the equipment to do it is cheap and easily connected to the Internet; a large test base for testing large brand X MG configurations would be difficult to assemble, organize, staff, and maintain</div>
<div><div><div> <br></div><div><div>On Thu, Mar 15, 2012 at 5:50 AM, Stefan Schmidt <span dir="ltr"><<a href="mailto:sst@sil.at">sst@sil.at</a>></span> wrote:<div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Hello list<br>
<br>
i have read about chan_ccs which sound like what i want to try.<br>
we now have a Cisco PGW talking to a switch over m2ua (?!) and also some<br>
cisco 5400 media gateways connected to the same switch.<br>
<br>
When i understand this setup right (sorry i am not from the classic<br>
telephone world ;) then chan_ccs would be able to do the same what this<br>
cisco pgw does now. Receive sip and talk to the switch using m2ua or<br>
something like this and mgcp to the 5400er media gateways to establish a<br>
rtp connection from the 5400 and the sip client.<br>
<br>
is this a possible way for chan_ccs or am i completly wrong about it? Or<br>
is there even another way to do this?<br>
<br>
best regards<br>
<br>
stefan<br>
<br>
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