if ( in one month ) I make a total of 15 calls at standard hours, what is the difference in cost between the two contracts ? ans

Question

SpyIntel [72]

3 years ago

15

if ( in one month ) I make a total of 15 calls at standard hours, what is the difference in cost between the two contracts ? ans

wer

Mathematics

1 answer:

Olenka [21] · Answer 1 · 2022-03-20T22:28:02+03:00

Answer:

Voice over Internet Protocol (VoIP), also called IP telephony, is a method and group of technologies for the delivery of voice communications and multimedia sessions over Internet Protocol (IP) networks, such as the Internet. The terms Internet telephony, broadband telephony, and broadband phone service specifically refer to the provisioning of communications services (voice, fax, SMS, voice-messaging) over the Internet, rather than via the public switched telephone network (PSTN), also known as plain old telephone service (POTS).