Feature matrix

Every feature as published by the vendor. “?” means the vendor does not state it.

Feature	Telofia	Voxiora	Aircall AI Voice Agent	Upfirst	fonio.ai	Heyheyo	My AI Front Desk (Frontdesk)	Retell AI	Dialzara	Trillet	home.pl Asystent Telefoniczny AI (Pulse AI)	Goodcall	IONOS KI-Telefonassistent / AI Receptionist	CallPage AI Voice Agent	Rosie	Phonely	Smith.ai AI Receptionist	Vapi	Synthflow	RingCentral AI Receptionist (AIR)
Free trial	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✕	✓	✓	✓	✓
Polish	✓	✓	✓	?	✓	✓	✓	✓	✕	?	✓	?	?	✓	✕	?	✕	✓	✓	✕
Appointment booking	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓
Calendar sync	✓	✓	✓	✓	✓	?	✓	✓	✓	✓	✓	✓	✓	✓	?	✓	✓	✓	?	✓
Call transfer to staff	✓	✓	✓	✓	✓	?	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓	✓
SMS follow-up	✓	✓	✓	✓	?	✓	✓	✓	✓	✓	?	✓	?	✓	✓	✓	?	✓	✓	✓
CRM integrations	✓	✓	✓	✓	✓	?	✓	✓	✓	✓	?	✓	✓	✓	✓	✓	✓	✓	✓	✓
Call recording	✓	✓	✓	✓	?	✓	?	✓	✓	✓	?	✓	?	✓	✓	?	✓	✓	✓	✓
Transcripts	✓	✓	✓	✓	✓	✓	?	✓	✓	✓	?	✓	?	?	✓	?	✓	✓	✓	✓
Learns from your website	✓	✓	✓	✓	?	✓	✓	?	✓	?	✓	✓	✓	✓	✓	✓	?	?	?	✓
Auto language switching	✓	✓	?	✓	?	?	?	✓	?	?	✓	?	?	?	?	?	✓	✓	✓	✓
Custom / cloned voice	✕	✕	✓	?	✓	✓	?	?	?	?	?	?	?	?	?	✓	?	?	?	✕
API	✓	✓	?	✓	?	✓	✓	✓	✓	✓	✓	✓	✓	?	?	✓	✓	✓	✓	?
Webhooks	✓	✓	?	?	?	✓	✓	✓	✓	?	?	?	?	?	?	?	?	✓	✓	?
GDPR / EU data	✓	✓	✓	?	✓	✓	?	✓	?	✓	✓	?	✓	?	?	✓	?	✕	✓	?
HIPAA	✕	✕	✓	✓	?	?	✕	✓	?	✓	?	✓	?	?	?	✓	✕	✓	✓	✓