SJphone VoIP softphone is one of the most known and used, in particular is often offered in combination with the services of the largest VoIP operators. The program runs on virtually anything that looks like a computer. It supports Microsoft Windows 98SE / ME / 2K / XP / 2003, Linux and Mac OS X and PDA with PocketPC 2002/2003 / 2003SE, Windows CE.NET 4.0 / 4.2 / 5.0, Windows Mobile 5.0 (the soft-phone is optimized for use with Intel XScale CPU).
SJPhone is compatible with the two main standard call signaling, SIP and H.323, and then works with many operators VoIP and IP-PBX systems. It is possible to configure different “services” (usually linked to the choice of an operator) and easily switch from one to another. The codecs available for the transmission of speech signals are G.711 A / u, GSM, iLBC and Speex.
SJPhone Interface
The graphical user interface is not that great but you can install different skins (2 at the time of installation) that make it more pleasant, with simple buttons to access the directory, the function conference, transfer, or ‘mute’ a the call.
The “tab” Contacts displays a list of missed, received and dialed calls, in addition to Microsoft Outlook contacts and regular contacts of the program. Interesting feature that identifies the other SIP or H.323 client on the same local network and automatically displays them under the heading “Neighbors.” E ‘can also use the program to direct calls to a specific IP address, without any of the parties is connected to a SIP server or the network of a VoIP operator.
In addition to the tab of the contacts and the main window for calls (dialer), the interface of the program there too complicates life and allows you to change the main options in a simple and almost automatic.
A click on the button “Automatically adjust microphone volume” of the tab for the audio setup microphone and speakers allow you to set optimally. Just as easily you can change other options to automatically accept incoming calls, ignore them, define key combinations or changing skins.
One of the most interesting features of the program is that it allows you to quickly change profile going from one operator to another VoIP in a single click. The function is very convenient when you want to maintain different operators and so choose the most convenient rates depending on the recipient of our calls. E ‘guaranteed support for several “cornets” USB. SJphone is free, but there is a paid version that includes the G.729 codec for encoding the voice signal.
In conclusion SJPhone is a great phone software that stands out in particular for the support of all popular standard protocols (SIP and H.323) and for the ability to run on all the operating systems most used systems, including Pocket PC equip a lot of PDA and PDA-Phone.
SJPhone Features
SIP and H.323 signaling support
PC Platforms: MS Windows 98SE / ME / 2K / XP / 7 / 8 / 8.1 2003 or Linux, Mac OS X
PDA Platforms: Intel xScale PDA with PocketPC 2002/2003 / 2003SE, Windows CE.NET 4.0 / 4.2 / 5.0, or Windows Mobile 5.0 Pocket PC. Softphone optimized for Intel XScale CPU
Proved interoperability with most VoIP services, IP-PBXs, gateways and softphones
Advanced multi-media engine softphone Provides superb audio quality
Multiple service profiles support
Minimum set {codec G.711 A / u; GSM, Speex, iLBC}
G.729 codecs of choice and more
upgrade notification
Integration with most USB phones
Changeable skins
CALLTO and SIP URL support
Automatic user registration
Dynamic Provisioning at login and On-the-Fly Configuration
Remote management and support
Account balance display
localization
telephony
Telephony Feature Set {DND, Mute, Flash, Redial, Three-way calls}
Business Feature Set {Forward, Transfer, Hold, MWI, Voice Mail, Ad-Hoc conferencing}
Push-to-Talk (coming soon)
Call logs
Contact lists
Hot keys and Speed-Dial
Changeable ring-tones and dial-tones
interoperability
SIP support
H.323 support
Proven interoperability with most softswitches, IP-PBXs, IP-Centrex
Proven interoperability with VoIP gateways and ATA boxes
Multiple DTMF options: inband, RFC2833, SIP INFO, H.245, Q931
Automatic detection and NAT traversal
Security
Symmetric and Asymmetric RTP stream
Integration with other applications
ActiveX web dialers for calls on webpage
IM & P integration
Neighbourhood discovery
Outlook / Outlook Express integration
ILS (Internet Locator Server) directory support
directory integration
Softphone SDK
Major support USB handsets and headsets
Bluetooth headsets support
Key mapping for PDAs
Porting to new platform
Audio and Video
Echo Canceller (AEC)
VAD
Adaptive Jitter Buffer for better sound
Audio codecs G711A, G711u, GSM 6.10, G723.1, iLBC, Speex (G729, G729a)
Video codecs H.261, H263 (coming soon)
Codec preference management
Video conference (coming soon)
Video mute (coming soon)
Frame rate and Size (CIF / QCIF) tune (coming soon)
Technical Setup:
License Freeware (paid version available)
manufacturer: SJlabs
5s SJPhone
Easy to use and complete
Using standard VoIP protocols
Compatible with many VoIP operators
Cons improved
OS: Windows, Linux, Mac OS X, Pocket PC, Windows CE.NET, Windows Mobile 5.0, winsows 7, 8, 8.1
Telephone (incoming) are not offered telephony services
SIP, H.323
Videoconferencing In the course of development
How To Download SJPhone On PC (windows 7, 8, 8.1)
One can point his cursor to THIS link to download SJPHone on its PC.