Hi,<br><br>I've been working on migrating my asterisk from zap to sip (due to compatibility issues between my TDM400P and my Hauppauge PVR500). I've purchased a Linksys SPA-3102 and a Siemens Gigaset SL75 WLAN (wireless SIP phone). I managed to get it all working with my asterisk
1.4.0 installation, but I'm seeing some interesting things with the canreinvite option that I can't explain, even after reading:<br><a href="http://www.voip-info.org/wiki-Asterisk+sip+canreinvite">http://www.voip-info.org/wiki-Asterisk+sip+canreinvite
</a><br><br>My setup:<br><ul><li>asterisk server with:</li><ul><li>eth0 = <a href="http://192.168.254.254">192.168.254.254</a> (internal network)<br></li><li>eth1 = Internet IP-address</li><li>ZAP/1 (FXO) not used<br></li>
<li>ZAP/2 (FXS) not used<br></li><li>ZAP/3 and ZAP/4 (FXS) with DECT phones<br></li></ul><li>SPA-3102: <br></li><ul><li>WAN interface configured with DHCP, it gets <a href="http://192.168.254.104">192.168.254.104</a> (internal network)
</li><li>LAN interface is not being used</li><li>Line1: DECT phone</li><li>PSTN: is connected to the PSTN<br></li></ul><li>Siemens SL75 WLAN: <a href="http://192.168.254.105">192.168.254.105</a><br></li><li>Laptop (<a href="http://192.168.254.125">
192.168.254.125</a>) with an Eyebeam and idefisk softphone<br></li></ul>All the SIP endpoints are connected to the internal network, there should be no NAT issues.<br><br>In all situations I'm able to dial the other phone and make it ring.
<br><br>From the ZAP endpoints to the SIP endpoints (and vice versa) I get sound. Same applies to the IAX2 client (idefisk).<br><br>When I have 2 SIP endpoints that both aren't configured with "canreinvite=no" then I get no sound.
<br><br>Conclusion: all media needs to go through the asterisk server in order to get sound.<br><br>Questions:<br><ol><li>Are all of my SIP endpoints incompatible with the canreinvite=yes option?</li><li>Is there a list of SIP endpoints that are known to work with "canreinvite=yes"?
</li><li>Are other people also experiencing this?</li></ol>with kind regards,<br><br>Stefan van der Eijk