2N Omega Lite - Operator Services v1.2 - Manual (Page 5)

2N
®
- OMEGA Lite
Operator services
Users Manual - Operator services
www.2n.cz
4
1.2. Explanation of Terminology
CO (External, Public) Line
CO lines are public telephone network lines that are connected to your 2N OMEGA
Lite PBX as inputs. They are used for outgoing (external) calls, i.e. calls outside your
company. These lines include either the O
2
lines, GSM lines, or also your private
lines.
External (CO Line) Subscriber
Any external subscriber worldwide that calls or is called by your PBX using a CO
line.
Internal Subscriber
Any subscriber inside your company connected to the 2N OMEGA Lite PBX. Internal
PBX calls are free of charge.
Private Network
A telephone network owned by one subject and used for telephone interconnection
of his branches and their subscribers. From the viewpoint of the 2N

OMEGA Lite
PBX, there is no difference between private and public telephone networks.
Private Subscriber
Any external private telephone network subscriber.
Tone and Pulse Dialing, Tone and Pulse Telephone Sets
Two types of telephone sets are used in many countries - the older pulse telephone
sets and advanced tone telephone sets (which are usually able to use pulse dialing
too, the dialing mode is selected by a switch). The 2N

OMEGA Lite PBX works with
both the types of telephone sets without problems, but pulse telephone sets offer
lower comfort and type of dialing related to inividual extesion and it is necessary to
set a type of dialling for a each extension line on the PBX. Since services are
different in each type of telephone sets, make sure which of the telephone sets you
are using currently. We recommend to use tone dialing telephone sets for better
comfort.
Trunk
A group (cluster) of CO lines, for one department of your company, for example.
Voice Mail and Fax Server