GrandStream GS-GXW4248 GrandStream GS-GXW4248 48 Port Fxs Gateway

48 Port Fxs 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 Display With Support For Multiple Languages- 2/3/4 Sip Server Profiles Per System And Independent Sip Account Per Port- Supported Voice/fax Codecs Include G.711 G.723.1 G.726a/b Ilbc T.38 Fax- Advanced Carrier Grade 128ms-tail-length G.168 Line Echo Cancellation- Over-voltage And Over-current Protection(itu-t K.21)- 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