China (Mainland) Telephone Switching System

Specifications: 1.Billing System （Optional） 2.Extendible (From 416 To 832) 3.3 pieces of OGM recorder-able 4.Announce extension number by voice 5.Broadcast toward outside 6.Extension Call meeting system （All extensions can meeting at the same time） 7.Outside music line Parking （Each extension has this function） 9.Incoming Call Hasten line Group 11.Extension Password 12.Programming by System Password 13.Daytime & Night service 14.Operator Assistant / Auto Attendant 15.Restrict extension receiving incoming call 16.Transfer when busy or no answer 17.Flexible Coding 18.Outgoing call Restriction Duration Control Transfer Pick-up （Both CO line and intercom could be picked-up） 22.Secretary Call 23.Override or monitor 24.Caller ID conversation loops 26.Suitable For Any General Communication Equipment