Call Management Software

#1
Who knows how much does Call Management Software cost? I want to reduce communication costs. For this I need a proven service, who can you recommend?
 
#2
Hi, I just recently decided to try using this tool. Many entrepreneurs use call tracking in order to track incoming calls. Now I am testing a trial version of the starter package here https://callgear.com/pricing/. Has anybody heard about this service before? Prices are low, hoping to see results. Using the free version too, maybe this service could help.