One of the best practices of oma dm: terminal self-registration

Tian haili

2012-02-27

DM is now one of the essential services required by domestic operators. The DM service operator can understand the user terminal situation and data usage, and the customer service mode has changed. The terminal manufacturer can reduce the after-sales cost and configure parameters and upgrade the subsequent versions more conveniently. China Mobile calls the DM Service enhanced after-sales service. This seriesArticleProvides best practices for CMCC's DM business, such as terminal self-registration, security authentication, parameter collection, and parameter configuration.

Terminal self-registration is the only non-oma standard service in the cmccdm business.

Let's take a look at China Mobile's introduction to this business.

This implementation is very simple, that is, sending a string to a port of the specified special server number in China Mobile.

Note the following points:

1) The sending time is not only the first boot or card replacement of the terminal shown in the figure. This is a clear description of China Mobile's specifications, which is not detailed here;

2) When a group of PDU packets are sent, both the source port and the destination port must be set to the port specified by China Mobile;

3) The specific PDU data format is: IMEI: <IMEI>/<man>/<mod>/<sw_ver>;

4) in the latest specifications (dm3.0), the self-registration confirmation text message reception is configurable [Green elliptical section in the figure]. However, no matter whether or not it is received, it must be 5th points;

5) The text message, SMS receipt, and confirmation text message sent by the terminal cannot be seen by the user.