A VoIP system is usually cheaper to operate than an equivalent telephone system with a PBX and conventional telephone network service.
Correct Answer:
Verified
Q10: The requirements of real-time traffic differ from
Q11: _ is the determination of the willingness
Q12: The Payload Type field identifies the media
Q13: An application-level firewall may prevent the forwarding
Q14: The _ connects different physical networks in
Q16: _ is a desirable property for real-time
Q17: A user agent server issues SIP requests.
Q18: SIP can support any type of single
Q19: The heart of the call placement process
Q20: The jitter measure may provide a warning
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