OnSIP vs Phone.com (2026): which should you pick?

Pick OnSIP if

• Fits if you run a small office of five or more in the U.S. or Canada and want desk phones in the price
• Works for teams that already own SIP phones and would rather pay per feature

Look elsewhere if

• Skip it if you have fewer than 5 users, because Unlimited has a 5-user minimum
• Not for you if you are outside the U.S. and Canada, which the sign-up page says it does not serve
• Pricey if you need recording or queues, at $4.95 and $14.95 per user a month on top
• Watch out: E911 is $1.80 per user a month and each extra number is $2.00
• Watch out: there is no free plan and no trial

Pick Phone.com if

• Fits if you want calls, texts and fax on one business line
• Works for small offices that would rather talk to sales about a discount for more than four users

Look elsewhere if

• Skip it if you want a published price, because plan prices could not be read
• Tight if you call abroad or use toll-free numbers, since those are billed as additional usage
• Watch out: unlimited extensions come with a fair-use limit that excludes auto-dialing and fax blasting
• Watch out: there is no desktop app, only the browser and phone apps
• Watch out: discounts are arranged through sales

OnSIP

• Unlimited needs at least 5 users; the Pay-as-you-go plan does not include calling minutes.
• Many features are paid add-ons: call recording is $4.95 per user a month and enhanced queues $14.95 per user a month.
• E911 is $1.80 per user a month and each extra phone number is $2.00 a month.
• The sign-up page says OnSIP does not service locations outside the U.S. and Canada.

Phone.com

• Plan prices could not be read: the vendor's main site refused automated access, so pricing is recorded as unverified.
• Minutes beyond the shared pool, international calls and some toll-free calls are billed as additional usage.
• Unlimited extensions are subject to a fair-use limit that excludes auto-dialing, telemarketing and fax blasting.
• Discounts apply to accounts with more than four users in a tier and are arranged through sales.

OnSIP

Call handling

Auto attendants, business-hour rules, ring groups, call parking, transfers, call screening and a dial-by-name directory.

Call center options

ACD queues, live queue dashboard, historical reporting, and monitor, whisper and barge, with queue features priced per user.

SMS and MMS

Business texting from your number in the apps; the Unlimited plan includes 250 messages per account, with 1 cent overage.

Apps and phones

Softphone apps for Mac, Windows, Linux, iOS and Android, a browser app, and any SIP-enabled device.

Integrations

Connections to HubSpot, Zendesk and Odoo, a Chrome extension, and an open API.

Month-to-month terms

The site describes month-to-month contracts with onboarding included, and lists each add-on feature with its own rate.

Phone.com

Calling and voicemail

Greetings, call forwarding, business hours rules, voicemail and call recording are set up from the admin tools.

Text messaging

Send and receive texts from the web app and mobile apps, including on toll-free numbers.

Browser and mobile apps

My.Phone.com runs calls, texts, voicemail, video meetings and fax in a browser, and there are iOS and Android apps.

Metered and unlimited extensions

Accounts share a pool of minutes, with extra bulk minutes available, and any extension can be upgraded to unlimited under fair use.

Answering services

An AI receptionist and a live receptionist service are listed in the help center alongside faxing and audio conferencing.

ProSIM mobile service

ProSIM is a cellular mobility service that works with unlocked iPhone and Android phones.

OnSIP

• Unlimited$18.95

  per user / month, 5-user minimum

  Unlimited standard calling, VoIP phones included, unlimited auto attendants, ring groups and recording users.

• Pay-as-you-go$49.95

  per month for the account

  For low call volume: calling billed at 3.2 cents a minute, 1 auto attendant, 3 recording users, inbound SMS and MMS.

Phone.com

Pricing could not be confirmed. See phone.com.