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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>The issue appears to be between the Cisco 7940 and the
ArtDio IPF-2000, when a call is initiated between these phones the ArtDio phone
receives the audio stream fine from the Cisco, but the Cisco can’t hear
anything from the ArtDio, until the Cisco user places the call on hold and then
picks the line back up. When the Cisco user places the call on hold,
music streams fine from the server to the ArtDio and is played.
Incoming/outgoing calls through the Asterisk server with the PSTN network are
flawless with either the ArtDio or Cisco phone, and calls between ArtDio-only
or Cisco-only are flawless. What gives??<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>I tried setting specific audio codecs in sip.conf for each
phone with disallow=all and then allow=ulaw, I set the SIP<MAC>.cnf file
for the Cisco phone to be 711u as the preferred codec, and through the web
interface configured the ArtDio to use 711u as it’s preferred codec, to
no avail. I tcpdump’ed the data during the call and set the ArtDio
phone to use RTP port and Control ports within the 17000 – 32000 range
(SIP<mac>.cnf sets the Cisco phones to use ports dynamically from this
range, based on tcpdump analysis) We’re using Asterisk 1.0.9 (Xorcom
Rapid 1.1 latest release). <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>I can post further configuration files if required. Any
pointers would be much appreciated!<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>--</span></font><o:p></o:p></p>
<p class=MsoNormal><u1:PersonName u2:st="on"><st1:PersonName w:st="on"><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>Michael
Coburn</u1:PersonName></span></font></st1:PersonName><o:p></o:p></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Network Solutions Manager</span></font><o:p></o:p></p>
<p class=MsoNormal><u1:place u2:st="on"><st1:place w:st="on"><font size=2
face=Arial><span style='font-size:10.0pt;font-family:Arial'>MidWest</u1:place></span></font></st1:place><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'> Technical
Associates</span></font><o:p></o:p></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>c: 614-425-9203 <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>p: 614-336-3640 x501</span></font><o:p></o:p></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>f: 614-336-3645</span></font><o:p></o:p></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>www.midwesttechnical.net</span></font><o:p></o:p></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
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