PSTN (Sim-Based IVR Call)

Basic overview of PSTN type of (IVR) Calls

PSTN stands for Public Switched Telephone Network.

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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