Grandstream GXW4504 Digital VoIP Gateway

Grandstream GXW4504 Digital VoIP Gateway The Grandstream GXW4504 Digital VoIP Gateway features 4 T1/E1/J1 span and supports 120 concurrent calls. Grandstream GXW4504 Digital VoIP Gateway Overview The Grandstream GXW4500 series of gateways are designed to cater to the large and medium-sized enterprises by bridging the connection of PSTN and ISDN trunks and VoIP networks. This allows business to effectively and drastically increase the amount of PSTN/ISDN trunks integrated with their VoIP network.  The GXW series are E1/T1 digital gateways that come in three different models, the GXW4501, GXW4502 and the GXW4504, supporting 1, 2, or 4 T1/E1/J1 spans and 30, 60 or 120 concurrent calls respectively. Grandstream GXW4504 Features and Specifications TLS and SRTP security encryption technology to protect calls and accounts Software-configurable E1/T1/J1 port and supports PRI, SS7 and MFC R2 Dual Gigabit network ports with a configurable integrated NAT router Supports up to 120 concurrent call