Siemens 2000 manual Sip, Slk, Vlan, Sntp, Srsr, Srtp/Srtcp

Models: 2000

1 110
Download 110 pages 50.97 Kb
Page 87
Image 87

Abbreviations and Specialized Terms

Alphabetical Reference

SIP

Abbreviation for "Session Initiation Protocol".

Protocol standard for initialising calls in Æ IP networks.

SLK

Only for optiPoint 420 telephones. SLK (Self-Labeling-Key) means, that the labeling fields of the function keys automatically display the stored func- tions via LCD display.

VLAN

Abbreviation for "Virtual Local Area Network".

Subdivision of an Æ IP network into autonomous administration groups (domains). A possibility of characterizing the association with a VLAN is us- ing a Æ Default VLAN ID.

SNMP

Abbreviation for "Simple Network Management Protocol".

The protocol is used for communication with servers that takeover net- work management functions. This includes for example, protocolling er- rors that occur in network components (SNMPTrap).

SNTP

Abbreviation for "Simple Network Time Protocol".

The protocol is used between timeservers and terminal devices of a net- work to synchronize the time of the terminal device.

SRSR

Abbreviation for "Small Remote Sites Redundancy".

SRTP/SRTCP

Abbreviation for "Secure Real Time Protocoll" or "Secure Real Time Contoll Protocoll".

The SRTP protocol is a more secure version of the Æ RTP protocol and is used in IP telephony for secure transmission of voice data between sta- tions. The SRTCP protocol determines the QoS characteristics for received streams. This provides senders with feedback that they can use to opti- mize voice stream emission.

Subnet Mask

Classifies networks in A-, B- and C networks. Each class has a subnet mask that demasks the relevant bits. 255.0.0.0 for Class A, 255.255.0.0 for Class B and 255.255.255.0 for Class C. In a Class C network, for instance, there are 254 Æ IP addresss.

87

Page 87
Image 87
Siemens 2000 manual Sip, Slk, Vlan, Sntp, Srsr, Srtp/Srtcp