What voice agent platforms leave to you
by Lukas Čeponis, Founder
Voice AI platforms make it easy to put an agent on a phone number. Their documentation is also clear that several controls are yours to build.
Recordings do not expire by default
On some platforms the links to call recordings and logs never expire unless you turn on signed URLs. A link pasted into a CRM note or a support ticket keeps working forever.
Caller identity is your job
No platform we reviewed verifies who is calling. If your agent can change an appointment or read an account, the identity check has to live in your backend, not in the prompt.
Tools are trusted unless you say otherwise
Tool calls reach your server with whatever arguments the model chose. Authorization belongs in the tool, with server-set parameters for anything a caller must not control.