Connections to the PSTN (Public Switched Telephone Network) may be interfaced with the ISI Stack to provide traditional dial-tone services via RJ-11 or PRI interfaces. In addition, virtual interfaces to Internet based VoIP providers or other branch offices may also be used to drastically reduce ongoing local and long distance charges to the organization. Video interfaces to traditional cameras may also be used to access legacy video systems. ISI recommends, resells, and installs voice devices manufactured by Cisco Systems, Inc.

Cisco has the capability to mix and leverage any type of voice connection made available to your organization through it's Integrated Services Routers platform, which is a modular system that adapts to growing and changing voice needs over time.

::Contact ISI to improve your organizations voice / video infrastructure::