What are the disadvantages of ISDN?

Answer 1

VOIP has become a force to reckon with in the telecom sector with many people and businesses saving considerable time and resources by opting for a relatively inexpensive voice over internet protocol . VOIP has many advantages , follow here:

- The main advantage is the amount of money you end up saving on your phone bills as compared to a traditional phone line.
- Inexpensive and easy to use. Since it is simple, upgrading is relatively simpler too.
- You can integrate it with an existing phone connection.
- With VOIP PC-to-PC, calls are free no matter the distance and PC-to-Phone charges are nominal.
- For a monthly fee you may make unlimited free calls within a geographic area.

A virtual number enables you to make calls from anywhere as long as a broadband connection is available.
- You may purchase a number in a geography area of your choice, which works out very cheap.

-You may access your VOIP account just like your email Id from any where in the world as long as you have an internet phone. This makes it easy for those who travel frequently to make calls frequently to those back at home at local call rates, no matter where they are.
- You may call or message or do both at the same time with VOIP services.
- VOIP cost about half the cost of traditional phone services and it seems that the taxes and surcharges are much lower. Also your bill is easier to understand and it can be viewed via the Internet.

Answer 2

Digital service - should have less errors Connection is fast - direct connection with no dialling Higher bandwidth - less time downloading material Able to use ISDN for more than one task e.g. surf and telephone Permits use of newer technologies e.g. video phone Streaming video or audio without disruption Video conferencing - multiple recipients Multiple users Because it's a digital service, ISDN offers excellent line quality compared to a rather noisy analogue line. ISDN connections are made in typically less than a second - unlike modems and analogue lines which require 30 to 60 seconds before any data can be transmitted. Voice, data and video can all be sent over a single ISDN line

Answer 3

A constant data transfer rate, unimpeded by other types of traffic

A direct Internet connection, eliminating dial-up connection procedures

Flat-rate connection charges instead of per-minute billing

Answer 4

what are the disadvantage of ISDN?