cant make ling distance calls the phone is locked i think. check on the user manual or reset the phone settings. but i'm shure that was locked
...notify on speaker another user on internal system of a call on another line Hi sir. really i'm not shure about this function but try read this manual maybe can be usefoul. ...
...supply, Remmeber +48Vdc will be in line. otherwise the phone can NOT be answer or call.Please be shure the battery is fully charged.God bless ...
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