16/24/32 FXS ports, GXW4248 includes 2 50-pin Telco connectors
1 Gigabit network port
132×48 backlit graphic display with support for multiples languages
4 SIP server profiles per system, independent SIP account per port
Designed and tested for full interoperability with leading IP-PBXs, soft-switches and SIP-based environments
Advanced security protection with SRTP/TLS/HTTPS
Supports 16KHz wide-band voice sampling rate and wide-band codecs such as Opus and G.722 (GXW4200 v2 series)

Carrier-grade security features including secure boot, unique certificate and random default password per
device, dual firmware images (GXW4200 v2 series)
Supports simultaneous 3-way voice conferencing per port (GXW4200 v2 series)