PSTN (Sim-Based IVR Call)

Basic overview of PSTN type of (IVR) Calls

PSTN stands for Public Switched Telephone Network.

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In PSTN call functionality, the first call is directed to the user's phone through a virtual number when a user initiates a call. Once connected, the call is then routed to the intended person, customer, or lead.

Importantly, both parties involved in the call can only see the virtual number; the personal details and actual phone numbers of both parties remain hidden from each other for privacy.

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