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ISG50 ISDN
ISG50-ISDN-EU0101F
ISG Gateway (Router, Firewall, IP-PBX) with 2 WANs, 3 LAN ports / 4x ISDN BRI, 25 SIP accounts
The ZyXEL ISG50 Series is a multi-function integrated service gateway designed to support
small and medium businesses and even remote offices of enterprises with IP telephony,
Firewall, VPN and routing services within one single appliance. With innovative integration
of security and communications features, IT managers are relieved from worrying about
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