SIP Commander - free portable softphone

SIP 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.

SIP 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 SIP 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 SIP 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, SIP 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 related technology links
SIP and related technology links
> ABOUT SIP > LINKS > SIP AND RELATED TECHNOLOGY LINKSSIP and related technology links

SIP and related technology links

The SIP Center maintains this section as a resource for the SIP community and those interested in learning more about SIP. Links are not restricted to SIP alone, we also include related topics.

If you are aware of any other links we should include then please let us know

See also: Resources for Developers/Testers

SIP Links

Estoile Sip Overview Comprehensive overview of SIP and links to SIP training, tutorials and implementations

Henning Schulzrinne's site Henning Schulzrinne of Columbia University is one of the founders of SIP. His SIP web pages are an excellent resource for developers. It includes a list of latest drafts.

JAIN API's Java technology based API's
Communications - A java.net community
The Parlay Group - An open multi-vendor consortium formed to develop open technology-independent application programming interfaces (APIs)
Tech-Invite - a Portal devoted to SIP and surrounding technologies
VoIP User - UK VoIP resource and PSTN to SIP termination service provider.
Voice over IP (VoIP) - VoIP resource page

Related protocols standards and supporting organizations

Wireless Industry Partnership (WIP) - The WIP Portal provides tools and resources such as the most comprehensive listing of developer programs on-line; and partnerships with wireless organizations around the world.
FierceVoIP is a free twice-weekly email service for elite executives in the voice over IP and IP telephony market.
voip-voice-over-ip - VoIP News, Reviews and White Pages. VoIP Portal with all inforamtion you need to know about VoIP. Fundamentals and how to implement VoIP, technologies, providers, products, books, reviews, and white pages, forum, link to recommended hardware and software.
VOIPSA - VOIPSA's mission is to promote the current state of VoIP security research, VoIP security education and awareness, and free VoIP testing methodologies and tools.
SIP and The SIP Center

The SIP Center is a portal for both educating users and the commercial development of the Session Initiation Protocol. Serving the SIP developer community as well as the wider industry since July of 2000, The SIP Center offers comprehensive technical and market resources to those interested in everything SIP!

To date, the industry's focus has been on the technical development of the protocol, the 'ironing out' of all the little wrinkles that are bound to affect a new technology. However, after sixteen interoperability 'SiPit' tests it has become apparent that a significant number of companies already offer robust SIP products and that mature SIP architectures have emerged. SIP has been torture tested in the labs and in trials is now in commercial deployment.

Inevitably, until now, the commercial and marketing issues associated with SIP have been of a lower priority than the technical developments. This web site differs from other SIP sites in that we aim to bring SIP to a wider IP Communications audience and to help bring real-world services to the market. We want to educate and promote SIP as well as accelerate service deployment. The intended audience for this site is service providers, technology vendors and the merely curious.

The SIP Center site isn't just about what we can offer; we welcome any input from external sources, whether as a sponsor or just as a contributor to the forum. Companies and organizations are also invited to submit whitepapers, press releases, and news items to be published on the site. This web site reflects the SIP industry as a whole and is fast changing; if you have any interest in SIP and IP Communications then you will need to be a regular visitor.

If you would like to help us advance the cause of SIP, please see our Sponsor Information page.

We appreciate thoughtful comments about this web site. Please contact us with any comments or suggestions at sipcenter@avaya.com.