Send customer notifications, appointment reminders, delivery updates, and 2FA codes on registered 10DLC numbers. Every business on 2ndCall goes through carrier brand + campaign registration before sending a single message.
A complete virtual phone system in your browser and on your phone.
US long-code numbers provisioned through carrier-registered brands and campaigns. Every sender on our network is individually verified.
Programmatic outbound SMS for transactional notifications, alerts, reminders, and 2FA — with throughput scoped to your approved campaign.
Outbound and inbound voice with call control, call-leg events, and TwiML-compatible scripting. Built on Twilio + Telnyx + SignalWire.
Automatic STOP / START / HELP keyword handling, per-recipient opt-out ledger, and carrier-required disclosures applied to every campaign.
Low-latency code delivery for account security, login verification, and customer onboarding — on registered, non-shared sender numbers.
Every inbound and outbound message is logged with consent status, campaign ID, provider message ID, and delivery receipt — exportable on demand.
No hidden fees. No setup charges. Cancel anytime.
How people use 2ndCall every day.
Order status, shipping, account activity, and service updates — delivered on your registered sender with guaranteed opt-out compliance.
Send one-time passcodes for login, password reset, and high-value action confirmations on a carrier-registered Authentication campaign.
Clinics, salons, and service businesses reduce no-shows with scheduled SMS reminders and confirm / reschedule reply flows.
Courier ETA updates, driver-to-customer SMS, and proof-of-delivery workflows. Numbers masked per order for privacy.
Broadcast campaigns to double-opt-in subscribers only. Built-in STOP handling, frequency disclosure, and quiet hours enforcement.
Route inbound support calls, record calls with consent, and bridge customer calls to agent handsets over SIP or PSTN.
Carriers require every business that sends SMS in the US to be individually registered. We make that automatic.
Sign up with your legal business name, EIN/tax ID, website, and declared messaging use case. We submit your Brand to The Campaign Registry.
Describe what you send (notifications, 2FA, marketing) with sample messages and opt-in flow. Carriers approve within 1–5 business days.
Once approved, messages go out on numbers tied to your registered brand — never a shared or umbrella sender. STOP/HELP handled automatically.
Read the SMS Policy and Acceptable Use Policy for prohibited content (SHAFT, lead-gen, loan-sharking, etc.). Violations result in suspension without refund.
Register your brand, get a 10DLC number, and start sending — all in one place.
Start Business Verification