Grandstream GXW4501 E1/T1 Digital VoIP Gateway with 1 software configurable E1/T1/J1 spans and support 30 concurrent calls
The Grandstream GXW4501 are E1/T1 Digital VoIP Gateway that allow digital PSTN and ISDN trunks to be integrated with VoIP networks. By connecting the GXW4500 series with a VoIP network and a traditional PBX or E1/T1/J1 provider, businesses can drastically increase the amount of PSTN/ISDN trunks integrated with their VoIP network.
The GXW4501 series supports PRI, SS7 and MFC R2 digital signaling protocols and nearly all major voice codecs including Opus, G.722, G.711, G.729, G.723, iLBC, G.726, GSM-FR, etc. This E1/T1 digital VoIP gateway includes dual Gigabit network ports with a configurable integrated NAT router, two USB 3.0 ports, and one SD card interface. By adding echo cancellation, jitter buffer, T.38 fax support, TLS and SRTP security encryption as well as automated provisioning by HTTP/TFTP with XML config files, the GXW4501 is able to cater to the VoIP needs of large and medium enterprises.
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