VoIP & Business Phone
Sideline
A dedicated second phone number app for small businesses.
3.9· 64 reviews· via Capterra
What is Sideline?
Sideline is a mobile app from Pinger that adds a dedicated second phone number to an existing smartphone for calls and texts. It is aimed at small businesses and professionals who want to separate work communication from their personal number.
Best known for: Second business phone number app
Key features
- Second phone number on one device
- Business calling and texting
- Auto-reply and voicemail
- Team number sharing
- Dedicated business line
- Number porting support
Who Sideline is best for
- Solo owners wanting a work number on one phone
- Freelancers keeping business texts separate
- Teams needing many numbers under one account
Ideal team: Solopreneurs and small teams of 1-10 who want a straightforward second business number with texting.
Sideline pricing
Standard
$9.99/per user / mo
- Dedicated business number
- Unlimited calls & texts
- Auto-reply & voicemail
Popular
Enterprise
$14.49/per number / mo
- Add up to 200 numbers
- Team management
- Priority support
Costs to watch before you commit
- Standard's lowest rate requires annual billing; monthly costs more.
- International calling is an extra ~$14.99/line/mo on Enterprise only.
- Enterprise bills per number, so costs scale with each line added.
Top Sideline alternatives
Popular VoIP & Business Phone tools teams evaluate alongside Sideline.
OpenPhoneModern, app-first business phone and texting for startups and SMBs.
RingoverUnlimited-calling cloud phone with dialers and CRM integrations.
NextivaReliable business VoIP with strong support and a customer-engagement suite.
Net2PhoneCloud business phone with strong international reach and support.
Google VoiceSimple business calling and texting inside Google Workspace.