GPRS data downlink transmission: up to 85.6kbps
GPRS uplink data transfer: up to 85.6kbps
Coding formats: CS-1、 CS-2、 CS-3 和 CS-4
Supports the PAP (password verification protocol) protocol commonly used for PPP connections
Support for protocols commonly used for CHAP (query handshake authentication protocol)
The built-in protocols:TCP/UDP/FTP/PPP/HTTP/NTP/MMS/SMTP/PING, etc.
Support for unstructured supplementary data services (USSD)
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