SIP Commander. Version 1.0
Download free version (1Mb)
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.
MGCP/Megaco Background
MGCP Megaco Background
> ABOUT SIP > SIP H323 AND MGCP > MGCP BACKGROUNDMGCP Background
MGCP/Megaco Background
MGCP/Megaco was developed by the telco community to address the issue of SS7/VoIP integration. The H.323 initiative had grown out of the LAN and had trouble scaling to public network proportions. The architecture that it defined was incompatible with the world of public telephony services, struggling with multiple gateways and the SS7.
To address this problem, the new initiative exploded the gatekeeper model and removed the signaling control from the gateway, putting it in a "media gateway controller" or "softswitch". This device would control multiple "media gateways". This is effectively a decomposition of the gatekeeper to its SS7 equivalents. MGCP/Megaco is the protocol used to communicate between the softswitch and the media gateways.
To confuse terminology: this initiative has come in a number of different guises. Firstly, IPDC (proposed by Level 3, 3Com, Alcatel, Cisco and others) and SGCP (Telcordia) were brought together by the IETF to form MGCP (Media Gateway Control Protocol), under the responsibility of the Megaco (Media Gateway Control) working group. MGCP is, at this stage, a working document and not a standard. The IETF and the ITU have decided to jointly mandate a single standard, endorsed by both communities and known as Megaco (IETF) and H.248 (ITU).
To further confuse matters, existing implementations of this protocol are based on various stages of this initiative; IPDC, SGCP and MGCP form the vast majority of implementations.
Megaco does represent an enhancement of MGCP: it can support thousands of ports on a gateway, multiple gateways and accommodation for connection-oriented media like TDM and ATM.