Grandstream Networks GXV3140 User Manual
Page 12
GXV3140 USER MANUAL
www.grandstream.com
SOFTWARE VERSION 1.0.0.44
waiting indicator, downloadable custom ring tone.
Caller ID
（Privacy）
Private header support for anonymous calls.
Firmware Upgrade
Configuration file authentication (before accepting changes);
TFTP/HTTP upgrade support, allows users to specify different URLs for the
server to download from.
Advanced Server
Features
DNS SRV support, SIP server failure transfer, message waiting indicator and
custom screensaver.
Security
MD5 and MD5-sess DIGEST encoding and authentication
；
Security protection: SIP over TLS and SRTP.