Small companies, and the call volume small: for the 400 is the facade project. In fact, 400 of the core functions of the phone is busy forwarding, to prevent the line is busy, guaranteed not to miss a call so to understand the benefits to be talking about 400 calls from its function, 400 has the following basic functions: First, an 400 number Below is bound cadre true if fixed or mobile phone (also access switch) when someone calls the 400 number, the system will be in charge of the incoming calls to the 400 following bound phone calls and realize: a sequence of call transfer calls when the phone is set to ring first, if the first phone is busy or no answer, and then the second part of the ring, so two random call forwarding incoming calls when the phone is idle a random access When selecting call forwarding through three calls, navigation system play welcome words (such as financial room, press 1, press 2, etc. Customer Service Department), the caller keys after the call is switched to the set on a good phone, the disadvantage is a key When only correspond to a telephone switchboard 4 business calls, navigation system play welcome words (such as financial press room extension 101, Customer Service Department, press ext. 102, etc.), the caller keys after the call is switched to the set If the cadres of the phone, and call transfer order, the advantage is that each extension number corresponds to more than five phone caller identification to achieve sub-regional transit, such as Shanghai's incoming calls if the cadres on the phone, call forwarding Beijing to other phone venture Hotline: 4001139113 free of charge hotline: 15013537440 bell Health