Which of the following types of conference calls can support more than three parties?
Which of the following is considered an industry standard as the voice quality measurement approach for VoIP networks?
Noting the subtle differences, which of the following is the correct format for the SIP INVITE as per RFC 4240?
You have 3 separate remote sites using SIP technology without P8X. One location has one MOH and one MCU server, second location has a one MOH and one treatment server and third site has one MOH and one recording Media Server installed. The whole contact center has a rate of 30calls/sec. What is the minimal number of Network SIP servers needed for this installation?
Which of the following choices below contains all the messages that SIP is required to act on during the request/response handshake?