Where the two differ
Compared against RingCentral's published plans and pricing page, 22 October 2026. They show separate pricing bands for 1 to 5 users, 6 to 100 and 100 plus; the figures below are the 1 to 5 band.
| SoundLine | RingCentral | |
|---|---|---|
| Entry price | $19.99 per user per month, $14.99 billed annually | RingEX Core, $30 monthly, $20 billed annually |
| Mid tier | $33.33 per user per month, $24.99 billed annually | RingEX Advanced, $35 monthly, $25 billed annually |
| Free trial | 7 days, self-serve, texting included once carrier activation clears | 14 days, up to 20 lines, and their terms state SMS is not available for trial use |
| Time to first call | Under 5 minutes, measured on video | Not published |
| Included outbound texting | 1,000 per user per month, pooled | 25 per user per month on Core, 100 on Advanced |
| Shared SMS inbox and compliance tools | Included | Business SMS Booster add-on, $25 per user |
| Toll-free minutes included | Toll-free on a paid plan | 100 minutes on Core, 1,000 on Advanced |
| Running multiple businesses from one account | Separate numbers, greetings, routing and voicemail per business, one app | Not positioned for it |
| Support | US-based phone support included on the mid tier | Varies by plan |
| In business since | 2008 | 1999 |
When RingCentral is the better choice
Said plainly, because a comparison page that cannot name a single case for the competitor is not a comparison page and nobody believes it.
Choose RingCentral if you are running a contact center, if you need a large seat count with tiered administrative permissions, if your compliance requirements are heavy enough to need a dedicated account team, or if you have existing enterprise integrations you cannot move. They have built for that buyer for a long time and they have built well.
Choose SoundLine if you are a founder, you run more than one thing, and you would rather spend five minutes than five weeks.
Questions people ask when switching
Can I keep my number?
Yes. Porting is free, and your current number keeps working the whole time the transfer runs. Start the trial on a new number and port your existing one once you have decided.
What happens to my RingCentral account?
Nothing until you cancel it, and you should not cancel it until your port completes. Run both for a week. That is what the trial is for.
Is the call quality the same?
Both run on carrier-grade infrastructure. SoundLine has been operating business phone service since 2008.
Do I have to talk to a salesperson?
No. You can run the entire trial without speaking to us. If you want to speak to us, call (206) 900-0099 and a person will answer.