Because part of the call charge is paid to the service provider (you!), your business can be funded via the calls. A great example would be a technical support line that offers high value services that couldn't be billed any other way. In many cases, they are to cover their costs on a case by case basis rather than charging customers continually for a service they may never use.
Dahil ito ay bahagi ng iyong serbisyo sa kanila. Maaaring magkakapera ang iyong negosyo sa pamamagitan ng mga tawag. Isang magandang halimbawa ay ang isang linyang teknikal na suporta na nagbibigay ng mataas na halaga at hindi maaaring sisingilin sa anumang iba pang paraan.