ISDN Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

ISDN Interview Questions

Questions Answers Views Company eMail

What are B channel charateristics?

1 2080

What is the D channel used for?

1 2320

Why can you not normally send data between users through the D channel?

1 2570

Why is there only one D channel in each interface?

1 2347

Name two significant differences between B and D channels.

1 2719

What is the maximum number of simultaneous connections supported by a Basic Rate Interface?

1 2013

What is the maximum number of simultaneous connections supported by a Primary Rate Interface?

1 2138

If two ISDN channels are used together, each connecting the same pair of users, how many calls are being made?

1 2338

How ISDNs are connected together?

1484

How users are connected to a public ISDN through an ISPBX?

1394

How configuration errors in the ISPBX can prevent successful connections?

1289

When multiple users on an ISPBX are making calls, how many users does the public ISDN network see?

1 2108

Do users on an ISPBX have a D channel connection to the ISPBX or to the public ISDN network? The users on an ISPBX do not communicate directly with the public network at all.

1 2162

An ISPBX can behave like a single user and a network - true or false? True.?

1 2063

A user on an ISPBX can use different D-Channel protocols to those in use by the public ISDN network connected to the ISPBX - true or false?

1 2112

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Un-Answered Questions { ISDN }

What item of equipment would be required to connect a modem to ISDN? A terminal adapter.

1522

What are SAPIs?

1381

What is Soft-fax and Soft-modem?

1688

How ISDNs are connected together?

1484

How users are connected to a public ISDN through an ISPBX?

1394

What is Fractional PRI?

1445

What is ISDN's history?

1385

What are TEIs?

1472

How to vary the the amount of bandwidth you have available to you?

1349

What is 2B1Q?

1491

Explain the call flow in nss and what is sri signal?

907

What Bearer Capabilities are and on which channel they reside?

1461

How configuration errors in the ISPBX can prevent successful connections?

1289

What are SPIDs?

1446

What protocols are used?

1469

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