Dial - Phone Numbers for AI Agents vs. Signal House

Dial gives AI agents their own communication identity. Through a single REST API or MCP tool, agents can provision real US, Canadian, and international phone numbers and immediately send and receive SMS, WhatsApp messages, and voice calls - no carrier setup, no separate integrations for each channel. Dial is built for the agentic era, where AI agents increasingly need to act on behalf of users: signing up for services, completing 2FA/OTP verification, placing outbound calls with a local caller ID, and handling inbound communication across every channel.

Signal House elevates your business communication with Tier 1 Messaging Aggregation direct from carriers and carrier partners offering fast, reliable, and intuitive SMS, MMS, and Voice while spending up to 70% less than Twilio. Streamline your A2P registration, get support without paying more, integrate directly into your preferred platforms, and reply on 99% delivery. More customers are switching over to Signal House from legacy aggregators (Twilio, Bandwidth) because of our simple to use API's, competitive pricing, white-glove support (free), and strong delivery.