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This is the main glossary available in all courses.


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Andreas Fink

Andreas Fink (innovaphone)

announcement call

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An announcement call in innovaphone speech is a call carrying a vendor specific H.323 facility marking the call as an announcement call. Such a call will be accepted by innovaphone IP phone immediately by going into hands-free mode.

E.123

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E.123 is a recommendation for Notation for national and international telephone numbers provided by ITU-T.

A number in national E.123 format could be +49 7031 730090.
Keyword(s):

FQDN

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A fully qualified domain name in DNS system specifies all domain parts and hostname of the host.

e.g. host.domain.com
Keyword(s):

IGMP

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The Internet Group Management Protocol (IGMP) is used by IP routers and hosts in IPv4 networks to manage the membership of IP multicast groups.

wikipedia.ico Internet Group Management Protocol

IP multicast

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IP multicast is a method of forwarding IP datagrams to a group of interested receivers.

wikipedia.ico IP multicast

IPEI

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International Portable Equipment Identity (IPEI) is a worldwide unique identification number for DECT handsets.

PCM

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Pulse-code modulation is a method for digital representation of the analogue voice data. In the innovaphone context, PCM means raw voice data of the ISDN or analogue interface, not encoded to any VoIP codec like G.711 or G.729.

wikipedia.ico PCM

Relay

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The relay (as configured in the fish-help.png Administration/Gateway tabs) is the software component within innovaphone devices that handles access to various physical or external interfaces (such as e.g. ISDN basic rate, primary rate or analogue FXS). It manages the interface in terms of status and physical configuration and provides the necessary protocols (such as ISDN, QSIG, CAS, POTS) to implement both signalling and media channel.

U-APSD

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U-APSD an acronym for Unscheduled - Automatic Power Save Delivery (also known as WMM Power Save) is an IEEE 802.11e specification for power management method used for VoWiFi applications, that enables to save power while bidirectional data exchange like RTP streams on VoIP WLAN handsets.

Keyword(s):

URL

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Uniform Resource Locator (URL) specifies where an identified resource is available and the mechanism for retrieving it.

wikipedia.ico Uniform Resource Locator

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