Отраслевые спецификации и стандарты

SMPP Specification

SMS messaging industry standard

SMPP TON and NPI Reference

SMS messaging industry standard

SMPP Data Coding Scheme

SMS messaging industry standard

SMPP Status Codes

SMS messaging industry standard

RCS Universal Profile

RCS messaging industry standard

HTTP Status Codes

HyperText Transfer Protocol status codes

RFC list

Request for Comments

Unicode Emoji list

Full Emoji List