OnSIP vs Sonetel

OnSIP is a business phone system with multiple business numbers, an auto attendant, custom call routing, and voicemail transcription. It provides desktop and mobile apps as well as a browser softphone, available in Chrome, Firefox, and Opera. Apps are listed for Windows, Mac, iPhone, and Android. The free plan supports up to 100 users and unlimited extensions, and includes Zendesk, HubSpot, and Odoo integrations. Free SIP accounts cannot dial regular phone numbers; paid plans offer a SIP-to-PSTN gateway. Paid plans start at $18.95/user/mo, and a 30-day trial is listed. Month-to-month contracts are available, with payment based on users and features. A SIP address can have active registrations on up to 10 devices. Softphone apps provide end-to-end encryption, and encryption is also available for desk phones. When both parties use the OnSIP app, professional call-link media is encrypted using DTLS SRTP. The Admin Portal supports setup, real-time feature edits, payment and contact management, and invoices.

Sonetel provides virtual business phone numbers and AI-powered communication for entrepreneurs. Its numbers are available in 78 countries, and incoming calls can ring across a user's devices. On paid plans, outgoing calls can display the business number. Sonetel describes AI voicemail and call summaries; summaries can include decisions, actions and a drafted follow-up email. Its Basic plan is free and includes SMS-to-email, incoming calls in the Sonetel app and user voicemail. Premium costs $9.95 a month when billed annually, with one free phone number per user, calls to 40+ countries, caller ID, transcription and recording. Business costs $29.95 a month when billed annually and includes five free phone numbers per user and those listed calling features, as well as team features and voice response menus. Premium includes 2,000 free call and forwarding minutes per user per month; Business includes 4,000, with one concurrent outbound call per user within the free allowance. Sonetel offers custom call routing, an auto attendant, desktop and mobile apps, and a Zapier integration for starting calls from automated workflows. Access includes Android, iOS, Linux, macOS, web, Windows and an API. The company is headquartered in Stockholm, Sweden, and its services launched in 2009.