This brief article describes the features of the CDMA and GSM MNP service.

The features of the MNP service are as follows:

• Portable MSISDN: When transferring from one network to another, or moving from one location to another, a user need not change the MSISDN.

• Independent service subscription: The services provided by a newly subscribed network will not be affected by the original network. If the newly subscribed network does not support the services that are provided by the original network, it does not provide these services to users.

• Repeated portability: The MSISDNs can be brought out of a network as well as brought in. The same MSISDN can be registered and deregistered repeatedly in a same network.

• Independent service: The MNP service does not conflict with mobile services.

• The MNP service supports the ATI message query interface.

• The MNP service supports the authentication by short messages.

According to the actual networking modes and applications, the service flow and data configuration of the MNP service are different. This document complies with the standards specified in the ETSI 03.66 protocol.

useful document, thanks