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I have a 9620 that was converted to SIP (not by me,) and the customer would like to use it as a regular extension now. How do I convert it back to H.323? There is no Call Server item in the address menu, and displays No Call Server during boot. Every time the phone boots up, it is in SIP mode...

Running IPO 500v2 6.1.16 with VM Pro VM Pro is set up with integration to Exchange server 2007. The exchange server has to run windows updates, (I don't know why, but IT says it does...) Everytime it reboots after an update, the VM Pro stops all message notifications. Lights do not come on...

I have a customer with an Asterisk system and about 30 Grandstream SIP phones. We are looking to switch them to an IP Office 500 and add 20 (digital) phones, if they can keep their Grandstream phones. The only feature I can't seem to find an answer for is whether or not an all-page, or dial...

What is the maximum number of IPO 500 v2's that can be tied together and use Centralized VM? Does this affect the maximum number of users per system? Thanks in advance!

New Install Having issues with hooking at remote location with Netgear FVs318 and 9608 IP Phone. Main office is also using FVS318 Not using the 9608 VPN Client, it is a point to point VPN. Provider is comcast. The IP Phone cannot connect and cannot ping the IPO Office control unit...

Hi, Really need help - customer has IP500 Version 5.0.15 - working fine for 6 months,for no apparent reason, they stop receiving emails but they are still able to check voicemail on their their phones. Voicemail to email is set using SMTP config/server, NO exchange. * Port set to 25, tried...