What's the number of the SMS center?

The number of the information center is the short message server. If it is not filled in correctly, the SMS cannot be sent successfully. Each region has its own information center number. Please consult your local network operator for the specific number.

Reference: SMSC (Short Message Service Center) is responsible for relaying, storing or forwarding short messages between base stations and mobile stations (ME); The protocol from ME to SMSC can send short messages from or to mobile stations, and the protocol name follows GMS 03.40 protocol.

CDMA mobile phone does not need to set the number of SMS service center.

format

Requirements for displaying calling numbers to users

In order to determine the format of the calling number transmitted between networks, the format of the calling number displayed to the called user must be made clear first, so as to ensure that the number transmitted between networks has the smallest modification as possible, and that the number displayed to users is easy to identify, which is convenient for users to dial back, and does not violate the above-mentioned principle of number transmission.

Format and content of calling number transmitted between networks

In order to make the standard intuitive and clear, in the fifth chapter of the standard, the format and content of the calling number transmitted between networks are clearly defined.

In various typical call connection models, the number format transmitted on each connection segment.

In order to make the calling number transmission between networks more operational, in this standard, according to two different network types, the typical connection models of various inter-network calls under different network types are given, and the corresponding number transmission format requirements are given for each connection in the typical connection model. Because the focus of this standard is to standardize the calling number transmitted between networks, although the recommended number formats are given in various typical connections, as the content required by industry standards, it is only necessary to ensure that the number transmission format between gateways meets the requirements.

When there is call forwarding service between networks, the transmission of calling numbers between networks.

In this standard, the format and contents of calling numbers transmitted between networks during basic calls are specified, and the contents of calling numbers to be transmitted between networks during call transfer are also specified and explained. Taking the long-distance call transfer of fixed users as an example, this paper explains the relevant requirements of the standard for calling number transmission between networks when call transfer occurs.