Speedtouch 510 fix.

Thanks to John for this fix.

The router is a Speedtouch 510 and apparently mangles incoming packets on
port 5060 due to a corrupt SIP application in the router.

I removed
"bind application=SIP port=5060-5060"

from a backed up config file, re-uploaded it and it all works.


Some speedtouch routers also can have this trick applied via telnet:

Open a Command Prompt window, e.g:
Start --> All Programs --> Accessories --> Command Prompt

At the prompt, type 'telnet' followed by the ip address of the SpeedTouch (default is

and then type:

:connection unbind application=SIP port=5060

and then type:


If it doesn't work immediately try rebooting the router.

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