Definition
Telephony refers to the technology and infrastructure for transmitting voice calls over telephone networks. Voice AI platforms connect to telephony providers to place and receive real phone calls. Building this stack yourself means managing carriers, numbers, and call routing, so most agencies skip that work and use a managed platform instead. See our AI phone call automation guide for how telephony fits a full hands-free calling setup.
Why it matters
Telephony is the bridge between AI software and the real phone network; reliability here determines whether calls connect and stay connected.
Frequently asked questions
How is Telephony used on a real phone call?
On a live call, Telephony shows up in the moments that decide whether a caller books, waits, or hangs up. It sits in the Telephony layer of the voice stack and works alongside PSTN, SIP, VoIP — evaluate it on real calls with background noise and interruptions before trusting it in production.
Why does Telephony matter for AI voice agents?
Telephony is the bridge between AI software and the real phone network; reliability here determines whether calls connect and stay connected. In practice, teams confirm it in the first weeks of PSTN review: when bookings hold and handoffs stay clean, the deployment is earning its keep.
How is Telephony used in AI phone call automation?
In AI phone call automation, Telephony is part of the Telephony foundation. It connects closely to related concepts like PSTN, SIP, VoIP, which together shape how a voice agent understands callers and completes real tasks such as booking appointments and qualifying leads.
Sources
Definitions and claims on this page are grounded in the following authoritative external references.
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