IP based telephony Flashcards
(25 cards)
What does IP in IP telephony stand for?
Internet Protocol
True or False: IP telephony allows voice communication over the internet.
True
Fill in the blank: IP telephony converts __________ signals into digital data.
voice
What is a primary advantage of IP telephony over traditional telephone systems?
Cost-effectiveness
Which protocol is commonly used for signaling in IP telephony?
Session Initiation Protocol (SIP)
Multiple Choice: Which of the following is NOT a characteristic of IP telephony? A) Scalability B) High latency C) Flexibility
B) High latency
What technology is used to transmit voice data in IP telephony?
Voice over Internet Protocol (VoIP)
True or False: IP telephony requires a dedicated telephone line.
False
What does VoIP stand for?
Voice over Internet Protocol
Fill in the blank: IP telephony can integrate with __________ applications for enhanced functionality.
software
Which codec is commonly used in IP telephony to compress audio data?
G.711
Multiple Choice: What is one major security concern of IP telephony? A) Call quality B) Eavesdropping C) Cost
B) Eavesdropping
What is the role of a VoIP gateway in an IP telephony system?
To connect VoIP networks with traditional telephony systems
True or False: IP telephony can only be used in business environments.
False
What is the primary function of Session Initiation Protocol (SIP)?
To establish, modify, and terminate sessions in an IP telephony network
Fill in the blank: __________ is a technology that enables voice communication over the internet.
IP telephony
What does QoS stand for in the context of IP telephony?
Quality of Service
Multiple Choice: Which of the following is a benefit of using IP telephony? A) Limited mobility B) Advanced features C) High maintenance costs
B) Advanced features
What is meant by ‘latency’ in IP telephony?
The delay between sending and receiving voice packets
True or False: IP telephony can support video calls.
True
What type of network is typically required for effective IP telephony?
High-speed internet connection
Fill in the blank: __________ refers to the ability to expand a telephony system easily.
Scalability
What does the term ‘packet switching’ refer to in IP telephony?
The method of grouping data into packets for transmission over a network
Multiple Choice: Which of the following devices is essential for IP telephony? A) Router B) Fax machine C) Modem
A) Router
