Phone Commander - free portable softphone

Phone Commander is a free portable softphone that you can use to make and receive VoIP phone calls from your PC, iPhone or Android based smartphone.

Phone Commander like a telephone to let you make calls through your computer. Call anyone via the internet who also has a softphone installed and if you sign up with a VoIP gateway service company you call regular telephone numbers as well.

The advantage of using Phone Commander is that you can leverage low cost or free VoIP calls and you can connect to the company SIP PBX and work remotely.

Easy to use and powerful Windows program was designed for people who want to improve dynamic interactions with contacts and to manage contact information. It supports multiple SIP accounts and save calls history.

See all contact information for incoming calls. For example, you can see Firstname, Lastname, Birhdate, Company name and other information before call answering. Keep detailed records and notes in your call log about each call and contact.

You can use Phone Commander as a customer database, or personal contact address/phone book, working with groups for managing contact info of individuals and organizations with relationships. Phone numbers, emails, web pages, faxes, pagers, addresses, customer notes - you can save all this data in an organized format.

You can dial phone numbers in one click via Internet. Program has a simple intuitive interface and quick and easy contact lookup. Import and export features are also available.

Attractive and easy-to-use organizer & PIM will keep track of your contacts, addresses, distribution lists, manage your schedule, remind about appointments, and keep your daily notes in order, store your contacts and call by one click. The slick user interface makes it a snap to find addresses and phone numbers, enter reminders.

With its intuitive & familiar interface, users can seamlessly transition from a traditional hard phone environment into the world of Voice over IP. Also by making the navigation simple and user friendly, Phone Commander provides users with easy access to address book management.

The program detects DTMF user input, sends DTMF (Inbound, SIP INFO, RFC2833), supports G.721 A-law/Mu-law, GSM.610, Speex. You can select audio In/Out Devices.

SIP and Mobile 3G and SIP
SIP and Mobile 3G and SIP
> ABOUT SIP > SIP AND MOBILE > 3G AND SIP3G and SIP

3G and SIP

The 3GPP (Third Generation Partnership Project) is producing globally applicable Technical Specifications and Technical Reports for a third generation mobile system. The group is using IP technology end-to-end to deliver multimedia content to mobile handsets so IETF protocols are a must. The call control and signalling function will be fulfilled by SIP.

3G is dedicated to using SIP for call control
SIP from terminal to network
SIP between network call nodes
All IP multimedia call signalling will be performed via SIP

Users will be identified by SIP URLs and/or E.164 numbers, the numbering system of the telephone system. The bearer system (GPRS or mobile IP) will manage micro-mobility. This is the movement of the mobile user from one base station to another. Macro-mobility, the movement of the mobile user from one domain to another, will be handled by SIP. SIP will route signalling so that services are available from the originating or terminating network

3GPP has identified the Call State Control Function (CSCF) in the network. This is the equivalent of a SIP server. There will be three different kinds of CSCF:

Proxy CSCF - this is the first point of contact in a visited network and will find the user's home network and provide some translation, security and authorization functions
Serving CSCF - controls sessions, acts as registrar and triggers and executes services. The serving CSCF will access the user's profile. It can be located in the home or visited network
Interrogating CSCF - the first point of contact in the home network. It assigns the serving CSCF, contacts the HSS and forwards SIP requests.

As SIP is rolled out as part of the 3G initiative, millions of SIP calls will be made.