Question about NEC PT-390 /NITSUKO Phone
Contact "Cisco" systems, and or "Speakeasy", they are both close to you, and I think they offer support for your phone systems, contact me back if this doesn't help, P.S., try going to the companyies website,and see if the have a "firmware download", it's not as hard as it looks, god bless
Posted on Jul 03, 2009
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Posted on Jan 02, 2017
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