LONG DISTANCE CALLS

For making long distance calls, computer telephone designed devices, are employed to send and receive calls. One such device, called USB phone, can be either wall mounted or placed comfortably at our desk. The USB phone connects directly to the USB part of our computer or laptop. It facilitates PC to PC phone calls via internet as well as PC to regular phone calls, Static gateway calls and webcall calls. The power required to run this equipment is quite marginal, which it takes from the USB.

Another system employed for long distance calls, is called Softphone. It operates like a normal telephone and is operated through a personal computer only and not through the conventional cable lines. Through PC’s sound card or USB portion of the PC, a headset is activated. ViOP protocols support Softphones. It could be H323/ standard SIP or even proprietary The usual softphones are – the Nexge, OpenWengo, sipXphone, Exprerss Talk, Siphone and Adore Softphone. These above phones can be used without hassles with Internet Telephone Service Providers (ITSP).

USB phones have the following features:

Many different types of USB phones are existing having different permutation and combinations of the following salient points -

Keywords – dialing the numbers have to be from keywords. Similarly accessing the voice mails by DTMF has also to be done by Keyboards.

Interruptions – No echo or interruption / interferences in either reception or transmission of international calls.

Simplicity in installation - Installing a USB phone is a very simple affair. An installation CD comes with the hardware, giving details. Some models will require additional help from soundcard in the sound application area of the control panel of the computer.

Compatibility with all systems – Many USB’s can work with multiple systems like Skype, Dialpad etc.

USB’S utilize the VoIP encoded voice through the Internet infrastructure by a standard TCP/IP network.

Many USB phones have in house soundcards and can be used at work, at home, on laptop/PC for international calls.

Many new models of USB do not need a mouse also to dial. They give a key pad , featured with a cursor for navigating through access menu functions, address book, redials, pop-up IP telephony applications, number dialing and send command button.

USB system requirements: 16MB RAM, USB port,2MB of HDD space and USB headsets come with multi-media applications like speech recognition, MP3, CD’s and games.

There is another website called Tui Talk which gives option to make free PC to mobile long distance calls by creating an account. When once the account is created, calls can be made to any mobile numbers, using country codes.