E1/T1 Trunk Settings Help

E1/T1 service allows Quadro to be connected to a PBX or to the CO (Central Office) via E1/T1 lines, using E1/T1 CAS/CCS signaling. Quadro can be connected to act as a User (if connected to a CO) or as Network (if connected to a PBX). If a private PBX is connected to Quadro, it should be configured in network mode, if the E1/T1 line from a CO is connected to Quadro, it should be configured as a User.

The QuadroM-32x product has only one E1/T1 trunk available.

The E1/T1 settings page is used to configure the E1/T1 trunk and timeslots settings. The page consists of the following components:

The Trunk Settings table lists the available E1/T1 trunks of Quadro and their settings (Trunk name, E1/T1 mode, interface and signaling type). Clicking on the trunk will open its Signaling Settings page (Trunk CAS Signaling Settings or the Trunk CCS Signaling Settings page depending on the selected signaling type). Selecting the corresponding trunk's checkbox and pressing Edit will open the Trunk - Edit Entry page. The E1/T1 Stats link is displayed for every active Quadro trunk and leads to the page where the E1/T1 trunk and the traffic statistics can be viewed.

Start and Stop functional links are used to start/shutdown the selected E1/T1 trunk(s). When E1/T1 trunk is shutdown state, no E1/T1 calls could be placed and received.

The Trunk - Edit Entry page consists of the following components:

• The Interface Type drop down list gives a possibility to choose between E1/T1 User and Network interface configurations.
• The Signaling Type drop down list allows choosing from CAS (Channel Associated Signaling) and CCS (Common Channel Signaling) signaling type.
  The same timeslot can be used both for voice and data transmission in case of CAS signaling. For CCS signaling a single timeslot is used for signaling data transmission on the whole trunk, all other timeslots are used for voice transmission.
• The E1 and T1 radio buttons are used to select between E1 (European system) and T1 (US system) mode. T1 mode enables 24 timeslots, E1 mode enables 32 timeslots to be used. The radio button selection enables the following settings:
  The Line Code, Frame Mode, Line Build Out, Coding Type, LoopBackMode drop down lists and Clock Mode radio button are used to configure the E1/T1 service; the appropriate parameters should be requested from the service provider.

Attention: Modifying the E1/T1 trunk settings may lead to some broken routes in the Call Routing Table.