SmartNode 4520

SmartNode 4520 is a VoIP gateway which unifies in itself a fully finished corporate router with multifunctional IP telephony gateway, the device offers new standards of communication cost reduction, possibility of connection of remote office with the main office and providing enhanced services of telephone operator. SmartNode 4520 is a perfect solution for a remote office, extension of main office PBX or switch, this VoIP gateway unifies all your voice and faxing traffic with data transfer.

FXS analog ports of SmartNode 4520 VoIP gateway support up to eight concurrent calls can connect to any phone or PBX ensure dial tone, calls and etc. FXO ports make PSTN lines accessible, ensuring local calls and enhanced services.
SmartNode 4520 has a ClearConnect™ patented technology which ensures adaptive monitoring of the network, using which you can always make a connection even during the times when the VoIP line is overloaded or inaccessible.
With its two 10/100Ethernet ports, SmartNode 4520 VoIP gateway ensures IP routing with guaranteed Quality of Service (QoS). Voice traffic is prioritized over data transfer and at the same time due to forming an IP traffic of the network still provides you with effective access to the Internet. As a corporate router SmartNode 4520 supports NAT, DHCP, Firewall/ACL, PPPoE. IPSEC VPN and VLAN clients, but DES, 3DES or AES protect the data and voice in public network.

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Push to Talk (PTT)

This is a way of communicating on the half-duplex communication line, includes receiving and transmitting devices (walkie-talkie) by the way of pressing the button for switching to the voice mode or transition to the listening mode. It works as a radio speaker; one can talk by pressing the button and can listen to a voice message by releasing the button.

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