I have googled a lot to find solution to the same exact problem described in your message but no real solution yet.<br><br>here is my config<br><br>1 physical network<br>25 pc windows <br>25 phones IP330 & IP550 SIP 2.1.2 no vlan CDP disabled some with dhcp some with fixed ip to see if there is a diff<br>
<br>3 switchs connected to each others<br>1 cisco switch 35xx for pcs <br>2 linksys 24P P OE for phones<br><br>1 patton PRI gateway to isdn<br><br>1 asterisk server 1.12.18 talking sip to Patton , for each phone, type friend can re-invite no, nat no <br>
<br>symptoms:<br><br>call drop randomly , can be after 10 s or 2000 seconds ! same log "didn't get frame etc<br>fews drops per phones per day but very irritating for the customer :-(<br><br><br>tried to power phones with adapters to avoid power pbs from the switch , same result<br>
<br>if someone met this problem before get an idea to fix it , I wd appreciate !!!!!<br><br>thanks<br>jl<br><br><div class="gmail_quote">On Tue, Jun 24, 2008 at 5:37 PM, gincantalupo <<a href="mailto:gincantalupo@fgasoftware.com">gincantalupo@fgasoftware.com</a>> wrote:<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">Hi,<br>
<br>
sometimes Asterisk drops calls and shows "Didn't get a frame from<br>
channel" in its log file. Unfortunately Google gives no answers even if<br>
a lot of people ask for help.<br>
A fast look into the code shows Asterisk entering a loop where voice is<br>
been transferred and every loop Asterisk waits for a frame, exiting the<br>
loop if no frame has arrived. It seems to be a problem not depending on<br>
the kind of channel...happens with ISDN and PRI lines.<br>
What is stopping the frames, making Asterisk exiting that loop and<br>
dropping the calls?<br>
<br>
Thank you.<br>
<br>
Giorgio.<br>
<br>
<br>
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