Specific CDMA number will be allocated as enterprise mobile exchange number. When customer dials the enterprise mobile exchange number, the system will complete the switch over to the mobile phone or fixed telephone of employee through manual or computer voice mode. This not only improves the office efficiency of enterprise, but also upgrades the customer service level of enterprise and saves the communication costs of enterprise.

Fixed telephone number is used as the access number of Business Exchange Server in Tianjin, Chongqing, and Sichuan as well.