Matrix VISIONPRO System Manual 51
CHAPTER 6
Configuring Trunks
To configure the system’s trunks, you must configure the following,
• “Trunk Parameters”
• “Trunk Access Groups (TAGs)”
• “Trunk Landing Groups (TLGs)”
Trunk Parameters
Similar to the stations, it is recommended to configure the Trunk Parameters at the beginning for smooth
functioning of the trunks connected to the system. VISIONPRO offers flexible settings for each trunk.
Trunk parameters include the following,
• Trunk Enable/Disable: A trunk port can be enabled or disabled separately. This can be useful when a
particular trunk goes out of order and hence, it should be barred from being allocated to a user.
• Dial Type: You can configure the Dial type as Pulse or Tone according to the dialing method supported by
the CO network to which the CO trunk port is connected.
• Trunk Type: Different types of CO trunks can be interfaced with the system; for example, a Normal dial
type trunk or a Hotline type trunk or a Delayed Hotline type trunk or a Special trunk.
Normal dial type trunk is the conventional trunk available from the service provider.
Hotline type trunk is the trunk that connects two destinations immediately on grabbing.
Delayed Hotline type trunk is a special trunk available from the service provider, which works as a normal
dial type for some time after grabbing the trunk and thereafter works as a Hotline dial type.
• Speech Connection Delay Timer: It is the time after which the system gives Dial Tone to a station user
on grabbing a trunk line.
To understand the significance of this timer, let us consider an example. A telephone line coming from an
old telephone exchange is interfaced with the VISIONPRO. Now a station user, who does not have access
to long distance numbers, grabs a trunk line and dials a number 1022-26305555. The PBX allows this
number since it starts with ‘1’ but since the actual Dial Tone from the telephone exchange comes after
some time, the telephone exchange interprets this number as 022-26305555 and establishes the speech.
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