August 2009 Archives

Both models of the ShoreTel VG90 and VG50 are availabe in V switch configurations. The V switch configuration enables you to provide local voice mail and autoamted attendant functionality to a smalll site economically. Compared to the cost of adding a distributed voice mail server, the SG50V and SG90V are economically viable alaternatives that should be considered as you plan for resilency and site continuity during a WAN outage. Due to the CF card capacity, daily backup of voice mail and automated-attendnat is advised. Continue Reading...

 A typical trouble ticket might sound like "when another extension calls me, I can hear them, but they can not hear me"!  Actually, one of my personal faviroites.  Over the years I have come to learn that this is usually the result of one of two issues: someone has the wrong default gateway; or port 5004 is being blocked by some firewall in one direction.  As we move more and more toward SIP and media streams move away from a dedicated port, this issue is almost always a network configuration error.

So which device has the wrong default gateway?   That takes some dedective work. Continue Reading...

This is one of those trouble tickets that keeps an engineer awake at night. A V switch was installed at a remote site to provide Automated Attendant and Voice Mail services for that site.   The V switch was one of three switches at that site and each switch had analog CO lines connected.   For reasons that nobody could explain, the observed behavior was that the AA would not change from On Hours to Off Hours as scheduled. Continue Reading...