The best Sideline alternative in 2026
Sideline is a personal second line app using carrier calling, not a business phone system. Phone2 gives you team collaboration, AI features, and integrations that Sideline simply doesn't offer.
Trusted by 10,000+ businesses who switched
Phone2 vs Sideline: pricing at a glance
Phone2 prices are per user, billed annually. Sideline pricing from their public plans.
Phone2
From $7/user/mo- Basic$10 monthly · 2 users + 1 number included$7/user/mo
- Pro$18 monthly · recording, phone menus, unlimited AI transcription$15/user/mo
- Scale$49 monthly · premium support, CRM sync, HIPAA$39/user/mo
Sideline
- Standardper month ($7.99 billed yearly)$9.99/user/mo
Want the full feature-by-feature breakdown? See the complete Phone2 vs Sideline comparison, or see how Sideline ranks in our best business phone systems guide.
Why teams switch from Sideline to Phone2
Get a real business phone system
Sideline is a personal second line. Phone2 is a complete business phone with shared numbers, team inbox, and professional features.
AI-powered features
Phone2 transcribes your calls and generates AI summaries. Sideline has no AI features whatsoever.
Toll-free numbers available
Need an 800 number? Sideline doesn't offer them. Phone2 does, on every plan.
Connect to your tools
Phone2 integrates with Slack, Zapier, and CRMs. Sideline works in complete isolation.
Switch from Sideline in 10 minutes
Phone2 ports your existing number for free. Here is the whole move.
- 1
Pick or port your number
Choose a new local or toll-free number, or start a free port of your existing Sideline number. Mobile numbers usually port in 1 to 2 business days.
- 2
Invite your team
Add teammates to a shared number and inbox in a couple of clicks. No per-seat contract and no minimum.
- 3
Set routing and go live
Set business hours and call routing, forward your old Sideline line while any port completes, and you are live the same day.
Porting is free on every Phone2 plan. Timelines vary by carrier and number type.
What you get with Phone2
Shared phone numbers
Your whole team calls and texts from one number.
Team inbox
Every call and text in one shared view.
AI transcription
Call transcripts and summaries, included on Pro.
Call analytics
Track missed calls, response times, and more.
No per-seat surprises
Add your team without enterprise minimums.
Lower entry price
From $7/user per month on annual billing.
FAQ
Is Phone2 a good Sideline alternative?
Yes. Phone2 gives most teams the shared numbers, team inbox, and AI transcription they switch for, starting at $7 per user per month billed annually, and it ports your Sideline number for free.
Is Phone2 cheaper than Sideline?
Phone2 starts at $7 per user per month on annual billing, with Pro at $15 per user for call recording, phone menus, and unlimited AI transcription.
Can I keep my number if I switch from Sideline?
Yes. Porting your number to Phone2 is free. Mobile numbers usually port in 1 to 2 business days and landlines in 1 to 2 weeks, and you keep taking calls the entire time.
How long does it take to switch from Sideline to Phone2?
You can be set up in minutes. If you are porting your existing number, that runs in the background so you never miss a call.
Does Phone2 have the features Sideline offers?
Phone2 covers the core business phone features: unlimited calling, SMS, shared numbers, team inbox, AI transcription, phone menus, and integrations.
Ready to switch from Sideline?
Get your number in minutes. Plans start at $7/user per month on annual billing, and we port your existing number for free.
Free porting. 30-day money-back guarantee.