Сравнение NEC DB4000 с Alcatel OT 500, Alcatel OT 700, Alcatel OT Club db
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NEC DB4000 
Alcatel OT Club db -
NEC DB4000 
Alcatel OT Easy db -
NEC DB4000 
Alcatel OT View db -
NEC DB4000 
Alcatel OT View db @ -
NEC DB4000 
Ericsson R250s PRO
