Question 2
What is the minimum power required by NT+2ab from exchange to work in Restricted Mode?
Answer
Minimum Power required by NT+2ab+USB to work fine in ab-Auto Restricted Mode is 1700 mW. The unit will work fine with the exchange which is able to provide at least 1700 mW.

Question 3
In which Mode the programming of features is possible in NT+2ab?
Answer
All programming of features can be done in any mode i.e. Normal or Restricted. During programming in Restricted Mode ab port should be configured.

Question 4
How long does the setting inside the NT+2ab that are programmed from the analog phone will last?
Answer
The setting will last forever unless changed by the user.

Question 5
What happen if user skipped the subscription of MSN number to each analog port, but proceed to set the MSN for identification?
Answer
If user skipped the subscription of MSN number, but proceed to set the MSN for identification. Then by default always Main line number will be set as MSN for Identification.

Question 6
In MSN for Identification, what is the first setting mean (Y890#)?
Answer
For this feature user configurable "CLIR enable / disable facility" through functional code, should be present on the ISDN Line. It will restrict the number i.e. when user select this, no number will be present to the called party during an outgoing call from that port.

Question 7
Why the call forwarding functionality is not working on the MSN numbers, while it is working on the main number?
Answer
The Call Forwarding facility on the MSN's number will also work when the Exchange provides it on all MSN’s number also.

Question 8
How Internal Call can be make, and will it be charged?
Answer
When both of the analog ports are connected with analog phone, users will be able to perform internal call (like intercom) from one to another by pressing *00*. This call will not be charged.

Question 9
How far can an analog phone be from the ab port (the cable length)?
Answer
It depends upon the impedance of analog phone as well as the cable connected between analog phone and ab – port. The total impedance should not be greater than 600 Ohm.

Question 10
Is all the features of NT+2ab+USB is provided by Exchange?
Answer
Some of the features of the NT+2ab+USB requires services offered by the exchange, thus, users have to subscribe the services first to enable it. For example, call waiting, call hold, call forwarding etc.

Question 11
How do I program numbers into the digital ports on the NT+2ab?
Answer
The programming is done on the customer's equipment. The MSN number is programmed into an ISDN telephone or on the PC controlling the ISDN modem.