Free tools for PBX and call center teams
Simple calculators we built while setting up phone systems. No sign-up.
PBX cost calculator
Subscription vs one-time license, with break-even point.
Call center staffing calculator
How many agents you need, using Erlang C.
SIP bandwidth calculator
Internet bandwidth for your concurrent VoIP calls.
Learn the terms
New to phone systems? Read our PBX and VoIP glossary or what is Telvora PBX.