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fdgsfgsdgvoip Flashcards

1
Q

What does VoIP stand for?

A

Voice over IP

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2
Q

What is the primary function of Voice over IP servers?

A

Route calls through Voice over IP phones or devices

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3
Q

What are Voice over IP servers also known as?

A

IP PBXs

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4
Q

What type of network do Voice over IP servers utilize?

A

TCP/IP Ethernet Network

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5
Q

What is the difference between a telephone system and a data system in the context of VoIP?

A

A telephone system uses traditional phone lines, while a data system transmits real-time audio communication over IP.

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6
Q

What are hard phones?

A

Telephones that look like traditional phones and provide real-time audio communication

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7
Q

What are soft phones?

A

Software installed on devices to allow them to provide real-time audio communication

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8
Q

True or False: All VoIP communications happen over normal Ethernet networks.

A

True

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9
Q

What is a significant advantage of hosting a VoIP server externally?

A

Reduces the cost and maintenance of having a server on-site

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10
Q

What is required for a VoIP server to connect to normal phone lines?

A

Analog and? digital ports must be available on the VoIP server
not and but or because just need a cable that allows it to work it may not have the right connection but it needs a port to be able to connect at all?

well analog or digital ports must be available to the phone server?

why digital ports if connecting to normal phone lines is normal constituting conventional phone lines and new phone lines?

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11
Q

Fill in the blank: A VoIP server can provide services to other computers on the network, acting as a _______.

A

server

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12
Q

What are trunk lines used for in a VoIP server?

A

To call in and out from the VoIP server

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13
Q

What is a Voice over IP trunk?

A

A service provided by a company that allows calls to be made over the internet

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14
Q

Name one proprietary company that manufactures VoIP servers.

A

AT&T avaya, mitel

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15
Q

Name one open-source VoIP server solution.

A

Asterisk, linksys maybe they got bought out

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16
Q

What is a key feature of VoIP servers compared to traditional PBXs?

A

They use Ethernet and TCP/IP for communication

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17
Q

What is the typical cost of a basic VoIP server for a business?

A

$2,000

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18
Q

True or False: VoIP hard phones are simpler than traditional telephones.

A

False

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19
Q

What type of devices can act as VoIP clients?

A

Telephones, computers, and mobile devices

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20
Q

What do VoIP servers contain that traditional PBXs also had?

A

Auto attendants, call trees, and hunt groups

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21
Q

Fill in the blank: A hard phone is a device that looks like a phone and provides _______ service.

A

telephone

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22
Q

What is a significant difference between hard phones and soft phones?

A

Hard phones are physical devices, while soft phones are software applications.

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23
Q

What is a hard phone?

A

A hard phone is actually a computer device that looks like a phone.

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24
Q

How are hard phones configured?

A

Through a web interface accessible via the phone’s IP address.

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25
What is the role of a Voiceover IP server?
To set up user accounts and manage connections for Voiceover IP clients.
26
What key configurations are needed for a Voiceover IP account?
* Extension * Username * Password
27
What happens if incorrect username and password combinations are used in a Voiceover IP setup?
The Voiceover IP server will not allow the device to connect to the extension.
28
What is a soft phone?
A piece of software installed on normal-looking computers to make them act like a phone.
29
What is the primary function of gateways in a Voiceover IP network?
To connect different types of communication networks, such as Voiceover IP to traditional phone lines.
30
How do gateways work in relation to Voiceover IP calls?
They route calls from Voiceover IP phones to normal telephone lines.
31
What is SIP?
Session Initiated Protocol, a standard protocol used for Voiceover IP communication.
32
Why is SIP preferred for Voiceover IP systems?
It allows interoperability among different manufacturers' devices.
33
What are some key components of a Voiceover IP network?
* Voiceover IP servers * Voiceover IP clients (hard phones and soft phones) * Gateways
34
What is the consequence of using proprietary protocols in Voiceover IP systems?
Limited device compatibility, forcing users to buy all equipment from a single vendor.
35
Fill in the blank: A hard phone is a computer that looks like a _______.
phone
36
True or False: A soft phone requires a physical device to function.
False
37
What do you need to configure on a Voiceover IP client for it to connect to the server?
Extension, username, and password.
38
What was the original main function of gateways in Voiceover IP networks?
To connect Voiceover IP communications to normal telephone calls.
39
What is the significance of TCP/IP in relation to SIP?
SIP resides on top of TCP/IP as an application layer networking communication protocol.
40
What are some examples of Voiceover IP clients?
* Hard phones * Soft phones * Computers * iPhones
41
What can happen if you misconfigure an account on a Voiceover IP server?
The device will not be able to connect to the desired extension.
42
Fill in the blank: Gateways connect different types of _______ networks.
communication
43
What is one major benefit of using SIP for Voiceover IP systems?
Allows for the purchase of devices from multiple manufacturers.
44
True or False: All Voiceover IP systems require proprietary protocols to function.
False
45
What is one example of a proprietary protocol that limits device compatibility?
Skype protocol
46
What protocol does Skype use for its service?
Proprietary protocol ## Footnote Skype requires specific phones with its protocol built-in.
47
Why is SIP considered advantageous in the context of Voice over IP?
SIP is supported by many manufacturers and allows for interoperability of devices ## Footnote SIP stands for Session Initiation Protocol.
48
What can consultants do to enhance a client's image using SIP?
Buy Cisco SIP phones and connect them to a free open-source Voice over IP server ## Footnote This gives the appearance of a high-end system at a lower cost.
49
What is a codec?
A codec encodes and encapsulates voice traffic for transmission over a network ## Footnote Codex affects sound quality and bandwidth usage.
50
How does codec choice affect Voice over IP communication?
It determines the sound quality and bandwidth used ## Footnote Higher quality codecs use more bandwidth.
51
What is the average latency for a normal telephone call?
45 milliseconds ## Footnote This is considered standard for quality communication.
52
What is the purpose of Quality of Service (QoS) in networking?
To prioritize network traffic, ensuring VoIP traffic is prioritized over regular data traffic ## Footnote This prevents bandwidth issues during phone calls.
53
What happens if network latency exceeds 100 milliseconds in VoIP?
Communication quality deteriorates, leading to poor experiences ## Footnote Users may start talking over each other due to delays.
54
What does unified communications aim to achieve?
Integrate various communication methods into a single interface ## Footnote Examples include making calls directly from Outlook.
55
Fill in the blank: The Cisco call manager can connect to _______ phones.
Linksys ## Footnote This illustrates SIP's flexibility with device compatibility.
56
True or False: Proprietary codecs generally offer better sound quality with lower bandwidth usage.
True ## Footnote Proprietary codecs often provide higher quality communications at lower bandwidth.
57
What is network latency?
The time it takes for data to travel from one point to another in a network ## Footnote Important for real-time communications like VoIP.
58
What can happen if a network user consumes excessive bandwidth?
It can lead to poor quality VoIP calls or inability to make calls ## Footnote Activities like downloading large files can impact VoIP performance.
59
What is a potential solution for network congestion in large VoIP systems?
Switch to a proprietary codec ## Footnote This may involve additional costs but can improve quality.
60
What is the role of open-source codecs in VoIP systems?
They provide a no-cost alternative for voice communications ## Footnote They may not always offer the best quality compared to proprietary codecs.
61
What is unified communication?
The integration of various communication methods, such as email, voicemail, and instant messaging, into a single platform.
62
What is the function of Voiceover IP servers?
To provide services to other computers on the network, acting like traditional telephone systems.
63
Define hard phones in the context of Voiceover IP.
Devices that look like traditional phones but are essentially computers designed for voice communication.
64
What are soft phones?
Software applications installed on devices like computers or smartphones that allow users to make calls via Voiceover IP.
65
What role do gateways play in Voiceover IP?
They connect the Voiceover IP world to traditional telephone lines, facilitating communication between the two.
66
What is the significance of the SIP protocol?
Session Initiation Protocol (SIP) is a standard protocol widely used for Voiceover IP communications.
67
True or False: Proprietary protocols allow for mixing and matching of devices and servers in Voiceover IP.
False
68
What are codecs in Voiceover IP?
Software that encodes audio communication, determining sound quality and bandwidth usage.
69
Fill in the blank: _______ is important for ensuring quality communication in Voiceover IP.
Network latency
70
What is quality of service (QoS) in networking?
A method of prioritizing network packets based on traffic type, giving Voiceover IP traffic higher priority.
71
What does network latency refer to?
The time it takes for data to travel from the sender to the receiver in a communication.
72
What are some potential issues with high network latency in Voiceover IP?
Talking over each other during calls due to delays in communication.
73
What can unified communications allow in email platforms like Outlook?
Features such as recording phone calls and integrating voicemail into the inbox.
74
What is the concept of convergence in communication technology?
The merging of telephony and data networks, allowing for integrated communication solutions.
75
True or False: All Voiceover IP systems are of equal quality regardless of the manufacturer.
True
76
What is the average cost of proprietary codecs per device?
$5 per device
77
What is a common characteristic of hard phones?
They are single-use devices primarily designed for making telephone calls.
78
Define instant messaging in the context of unified communication.
A real-time text communication method that can also facilitate audio calls through unified platforms.
79
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