Go through the control program PBX PCPro to the station. Next on the menu: ISDN FEATURES->BASIC PROGRAMMING(PRI)->CM05:BLADE DATA. Choose the Unit number, in our example 01 and SLOT number, we have 01. As is customary in NEC PBX programming, the indication that we are programming the E1 PRI ISDN stream will occur many times. No need to search in this logic, simply perform the sequence of actions to follow according the assigned ports.
Next on the menu: ISDN FEATURES->BASIC PROGRAMMING(PRI)->CM10:TDM TERMINAL/TRUNK REGISTRATION. Write 31 time-slots.
Next on the menu: ISDN FEATURES->BASIC PROGRAMMING(PRI)->CM04:a-LAW/μ-LAW SETTING for EACH UNIT, DESTINATION to RECEIVE the SYNCHRONOUS SIGNAL. Select the primary and secondary source of synchronization, namely the number of slots in which the PRI boards are installed.
Next on the menu: ISDN FEATURES->BASIC PROGRAMMING(PRI)->CM30:TRUNK DATA(B CHANNEL). We compare the TRUNK number wiht ROUTE number, and once again say that this trunk and route are of type ISDN (18: ISDN Indial). ROUTE for B and D time-slot are different. We also compare with voice channels (Interface voice channels).
Further I will give a listing of commands that need to be maintained to configure 10 and 11 ROUTE.
35093-10-00: “D-channel number in the system”
A900-00-216: “00 channel D number in the system from the previous command”
To get DIAL-TONE when you exit the TRUNK, enter the command: AA00>001: 1-0
Figure 5 shows the settings that allow you to choose the type of ISDN, in our case, ETSI, as well as the physical type of flow E1 or T1. We choose E1.
The number of connected PRI ISDN interfaces to the PBX is limited and the internal architecture of the station requires numbering of each D-Channel that we have programmed for a specific Board. In our case, we assign the number 00 to the D-channel recorded in TRUNK 216.
Additional settings for processing incoming digits from the trunk can be made in the CM8A command. The fragment is shown in illustration №7.
To fine-tune the ISDN, use the CM35 command, part of which is shown in illustration №8.
Unfortunately, the normal system, Troubleshooting at the station is not provided. Often, auxiliary equipment, such as Cisco Systems, was used to debug the flow. If you entered everything correctly, and the flow does not rise, then try to restart the entire station as well. Settings, the NEC often occurs after a reboot. When connecting the station to the operator is often faced with the fact that the flow from the operator after several attempts to synchronize and establish a connection – is blocked, so do not hesitate to interact with the engineers of the response station.
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