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FAQ
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What is the reason that IP-PBX is not registered in ITSP server?
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You can find the reason on‘Registration Status’ under ‘System Information’ menu. ‘Registration Status’ may show one of the following messages.
▷ Registered : Registration OK
▷ Unregistered (No Use) : Registering number isn’t set.
▷ Unregistered (Not Ready Yet) : The system is just booted and the applications are initializing now.
▷ Unregistered (No Network Connection)
▷ Unregistered (Timeout) : No response from the outbound server
▷ Unregistered (XXX) : When registration is failed, error number from the outbound server is displayed.
▶ 401: authorization is failed
▶ 403 or 404: disallowed or no-existing number
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How many can be set up for Auto Attendant feature?
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Is there any way that prevents ‘Absent’ message when incoming calls are not answered?
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How can I forward the calls coming from the main number?
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How can I set up call forward for the calls from‘Group Number’?
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If I select ‘Ring All Phones’ for ‘Hunting Method’ in ‘Group Number’, how many IP phones ring simultaneously at most?
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Can IP phones pick up calls coming from PSTN Trunk? And can legacy phone pick up calls coming from VoIP Trunk?
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How do I check if ‘Call Pickup’ is working well?
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Is Conference Call feature available?
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When making outbound calls, can I change the caller ID as I want?
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I have set up ‘Area Code’ on ‘General Information’ menu, yet it’s not working.
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How can I use ‘Area Code’ feature on IP phone?
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Can I send SMS on IP phone?
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It still shows 0 even though legacy analog phone is not connected to FXS port.?
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Can I use other IP Phones (from other manufacturers?)
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‘Inter-Office Call’is not working.
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Is ‘Inter-Office Call’ possible between Coretree IP-PBX and other vendor’s IP-PBX?
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Is ‘Inter-Office Call” possible between Coretree IP-PBX and other vendor’s media gateway?
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