Grandstream GXW4502 is a two-port gateway that lets you integrate digital phones and fax machines with an IP phone system. GXW4502 converts calls using the digital T1, E1, and J1 standards to the open SIP protocol, giving you maximum choice of VoIP integration. The gateway can handle up to 60 simultaneous calls. It supports the T.38 Fax Over IP protocol for integrating digital fax machines.
GXW4502 uses two Gigabit Ethernet ports with an integrated NAT router to provide excellent speed and bandwidth. It secures your calls with TLS and SRTP encryption. Optimize your voice traffic using the full QoS controls. GXW4502 is intended for rack or desktop mounting.