There has been a decrease in volume of fixed calls as customers have turned to alternative solutions, such as voice-over-IP (VoIP) and mobile calls, but also to alternative providers, like over-the-top (OTT) players.
Tavatelefonivõrgus tehtud kõnede arv on vähenenud, sest inimesed on hakanud kasutama alternatiivseid lahendusi, nagu IP-kõneteenused ja mobiilikõned, aga ka alternatiivseid teenusepakkujaid, nagu OTT-teenuste pakkujad.