Prices that stay confirm
- Vonage's voice, messages, and verify pages say see pricing. The price tables were not opened.
- Telnyx's SIP overview names a daily spend limit and does not state the number in the text that opened.
- Twilio's docs home lists a Pricing label. No Twilio price figure was read.
- Plivo's WhatsApp commitment is the exception already recorded. Other Plivo prices were not read.
- Sinch's SMS page says communications can be cost-efficient. That is not a number.
These are study notes, not vendor documentation and not legal advice. learning-only student project. https://cyphermonkeylabs.com/#contact https://github.com/CypherMonkeyLabs https://linktr.ee/cypherMonkey
Sources and go deeper
Opened 2026-10. A row marked confirm has no link, because that page was not verified.
sources.json