Greetings,

For the past 2 months I've been struggling with registration problems with asterisk+external FXS/FXO gateways (www.addpac.com) that use RFC3665 re-registration procedure.

This problem occured for devices with more than one FXS port with a set non-empty password.

Those gateway attempt to re-register after the initial register timeout period expires fully compliant with RFC3665, clause 2.2 (http://www.zvon.org/tmRFC/RFC3665/Output/chapter2.html#sub2), but asterisk fails to authenticate them.

The 1st FXS port of the device always registers successfuly (although still uses same RFC3665, clause 2.2 procedure), but the remainder fail miserably. Using an account/username with an empty password for the affected ports fixes the problem - so this is something with www-digest method (?).

I've spent 2 weeks debugging this with addpac development team, and the same device authenticates flawlessly with Sonus Proxy Server, SNOM Proxy Server, LongBoard Proxy Server, Nortel Proxy so this seems to be a problem with chan_sip.

I'm hesitant to post the long sip debug outputs to the mailing list to conserve the bandwidth. More info and sip debugs are available at http://bugs.digium.com/bug_view_page.php?bug_id=0003726

Is there anyone else with the same problem?

regards,
Vahan

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email;internet:[EMAIL PROTECTED]
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