VoIP SIP and related Acronyms

Some acronyms explained:


SIP Session Initiated Protocol Is a signaling communications protocol, used for the control of multimedia communications such as voice and video calls over IP (Internet Protocol) networks. SIP defines the messages that are sent between peers which control the establishment, termination and other parameters of a call.


VoIP Voice over Internet Protocol Is a methodology and group of technologies for the delivery of voice communications and multimedia sessions over Internet Protocol (IP) networks, such as the Internet. Another term commonly associated with VoIP is SIP telephonyas described above. Although SIP is only one form of VoIP. _
PoE Power over Ethernet This technology allows the end point device to be powered up via the network infrastructure instead of having a separate power supply at the end point.  These can come in the form of PoE Network Switches and PoE Injectors for instance. Injectors can be used if you have a very small number of devices not warranting changing a system switch or the end point is not hardwired directly to the network switch normally providing the power. _
Multicast - In the SIP or IP environment, multicast is the delivery of a message or information to a group of devices simultaneously in a single transmission from the source.

Commonly used in IP multicast, which many of our products support allowing for a multitude of destinations from a single point ie. SIP Extension or a public address master station on a PC or standalone hardware.  Even 2N Helios intercoms have the capability of acting as a sender or receiver of a multicast transmission.


Unicast -

In the SIP or IP environment, unicast is the sending of messages to a single network destination identified by a unique address such as via the internet to a defined destination.


P2P Peer-to-Peer Is a process where the two sip devices can call each other peer to peer.  They call each other by their sip IP address. The sip format is sip:234@ or sip: depending on circumstances. _
Multi-Peering Multi-Peering Is a process whereby the main calling device such as a 2N Helios IP Intercom can call multiple devices without the use of a SIP Server. As above the sip format is sip:234@ or sip: _
NAT Network Address Translation This is an Internet standard that allows a local network to use a public IP address to connect to the Internet and a set of local IP addresses to identify each individual device in the local network. _
ATA Analogue Telephone Adaptor This allows devices using analog voice signals to be converted to digital signals which can then be transmitted over the Network or Internet. _
BYOD Bring Your Own Device This enable end users who eish to use VoIP technology to connect their own equipment to the SIP Server or Service Provider.  These can be smartphones, tablets, laptop etc. _
CODEC Codec Used to define a number of different methods of converting analog signals to digital or digital signals to analog, such as Voice or Video in the SIP Realm.  Used in conjunction with compression software it cam enable the user to make the best use of bandwidth and quality of signal required over a network connection. _
DTMF Dual Tone Multi-frequency Sometimes known as touchtone. This signally is used for switching control so when a telephone keypad is touch it sends specific dual tone requests to the switching devices which commands the switch to switch through to a specific end point.  It can also be used for remote control of relays etc. using a telephone keypad. Dual Tone means the two different tone frequecies are transmitted together. This prevents possible issues of a single tone creating an unwanted command. _
IoT Internet of Things Anything that connects to the Internet via any network media.


There are many more Network Acronyms and from time to time I will keep adding more. I will attempt to cover a good number of them especially those relating to SIP VoIP Communications. Should there be any you wish explianed please simply Email us via Contact Link at top of Page and we will include them where possible here and in our next Newsletter.

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