Polycom VVX gives SIP480 – Can’t be Called

A recent update to the Polycom VVX firmware for Lync has introduced a strange bug. If a phone running the affected version of firmware is used to log into a BRAND NEW new Lync account (i.e. a normal user account or a Common Area Phone), the phone appears to stamp some invalid call forwarding data …

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Lync 2013 Client Update – May 2014

The Lync 2013 Client updates are flowing thick and fast of late. Here’s the May update. This update takes your client to 15.0.4615.1000. I’ve pasted the following warning onto the recent Client updates, as I don’t believe it’s fixed yet: If you install this update, users of Outlook 2007 and and Outlook 2010 will no …

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Enabling logging on the Sonus Tenor gateway

If you’re ever trying to debug a Sonus / NET / Quintum Tenor gateway, you’ll not get far by relying on Config Manager’s “Call Log” view.  When you’re ready to get serious, Telnet to the gateway and issue these commands: ev l3 sproto Enables Level 3 logging of all the SIP messaging ev l3 ch …

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