Telephony
Business voice calling, PBX and call-center telephony, including self-operated communications engines.
Paid tools and their alternatives
Each chip links to a comparison. Hover a tier letter for its meaning.
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Aircall
USD 30 / seat / month -
RingCentral RingEX
USD 20 / seat / month
Why this category sits where it does
Broad reach, position 36 of 48. Business calling spans many departments and industries; operating the OSS engines requires specialist communications skills.
Audience: Business phone users, sales and support teams, telephony administrators and communications developers. Editorial estimate, not a measured market size. Sources: aircall.io, www.asterisk.org. Checked 2026-10-21.