GXW4248 - Grandstream FXS 48 Analog Gateway

48 telephone FXS ports with both RJ11 and 50-pin Telco connectors, as well as per port LED
Gigabit Ethernet and a backlit 128x32 graphic LCD display with support for multiple languages
2 SIP server profiles per system and independent SIP account per port
Supported voice/fax codecs include G.711, G.723.1, G.726, G.729A/B, iLBC, T.38 Fax
Advanced carrier grade 128ms-tail-length line echo cancellation
Over-voltage and over-current protection (ITU-T K.21 Basic Test Level)
Support VMWI, NEON LED and stutter tone for message waiting indication
Automated provisioning using TR-069 or AES encrypted XML configuration file; TLS/SRTP/HTTPS for advanced security and privacy protection