1) Which of the following is a typical function of VoIP...

1) Which of the following is a typical function of VoIP gatekeepers?

Group of answer choices

Converting between RTP packets and PSTN voice bit streams

Registering terminals or User Agents (UAs)

Converting VoIP signaling and SS7 signaling on the PSTN

Converting between different audio codecs (i.e., voice transcoding)

2) Which of the following is a traditional telephony feature that existed before VoIP?

Group of answer choices

Webinar broadcasting

Using a public telephone number (E.164) to receive faxes in one's private e-mail box

Converting a voicemail to text to deliver it via e-mail

Using a DID number to directly reach a local extension without an attendant

3) Calculate the number of erlangs that is equivalent to 36 CCS.

Group of answer choices

0.6 

1 

36 

3,600