Why SIP?


– As business grows, the communication can grow easily without having to make gateway or card investments
– SIP trunking also reduces the costs on separate voice and data connections and increases the benefits for communication systems using both voice and data together.
– SIP will work with much of the voice and data networking equipment you’ve already got in place,
– ITU-T gave us H323 (complex development for OEMs)
– IETF introduced SIP (open source, flexible development and interop with any OEM)

– When integrated LAN IPT with the outside world PSTN CLoud with the help of ITSP
– Eliminates costly BRIs (Basic Rate Interfaces) and PRIs (Primary Rate Interfaces) subscriptions
– No need to invest in PSTN gateways and additional line cards as you grow
– Edge devices offer low investment path in adding new lines as they are typically cheaper per line  than the corresponding PSTN gateway

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