Plug in what you already pay for.

Call Control v2 + WebRTC softphone, signed-URL recordings, Ed25519 webhook verification.

In-browser Voice SDK calling + low international SIP rates; CDR poll for retroactive ingest.

India-native voice with per-agent OAuth, presence sync + recording import.

Programmable Voice — bring your own account for outbound calls.

Carrier-grade US voice for high-volume outbound.

Global programmable voice — alternative carrier.

Programmable voice over SWML / LaML.

Global voice carrier for international outbound.

Voice API for global outbound calling.

Programmable voice platform with scenario routing.

India voice + OTP carrier.

AI replies, summaries + analyst-mode lead drilling — bring your own key.

GPT for AI replies, lead scoring + voice-agent brains — BYO key.

Low-latency LPU inference for fast AI replies.

Realtime TTS for AI voice agents — sub-300ms latency.

Streaming speech-to-text for live call transcripts.

End-to-end AI voice-agent runtime, pluggable per workspace.

Transactional email — invites, reply alerts, receipts, digests.

OAuth mailbox — send + IMAP replies; bulk-onboard via the wizard.

OAuth — Outlook send + IMAP + Microsoft Graph.

Anything that speaks SMTP/IMAP — self-hosted Postfix, Mailcow, and more.

Twilio SendGrid SMTP relay — paste your API key and send at scale.

Brevo (formerly Sendinblue) SMTP relay — bring your own SMTP key.

Mailgun SMTP relay with US/EU regions — your own sending domain.

Mailjet SMTP relay — API key + secret key for transactional send.

Elastic Email SMTP relay — high-volume transactional + marketing.

Zoho ZeptoMail transactional SMTP — com/eu/in regions.

SMTP2GO relay — dedicated SMTP username + password.

SendPulse SMTP relay — bring your own SMTP login.

Maileroo SMTP relay — per-domain SMTP account for transactional + marketing send.

Mailercloud SMTP relay — paste your Sending Domains SMTP credentials and send at scale.

10DLC + global SMS with STOP-keyword auto-DNC.

10DLC / toll-free SMS — bring your account.

US 10DLC messaging at carrier scale.

Global SMS — alternative carrier.

Programmable SMS over LaML.

Global SMS for international reach.

Global SMS API.

Programmable SMS.

India-native SMS + OTP.

Official WhatsApp Business — template-gated, opt-in enforced.

WhatsApp Business via Twilio's WABA.

WhatsApp Business via Sinch.

WhatsApp messaging via Vonage.

WhatsApp Business via MSG91.