SJ Labs SJPhone 1.60
- Simple, supports just about everything automatically
- Ugly interface
Technically a brilliant product but not the prettiest interface around.
SJPhone is a deceptively simple VoIP client that supports the two main industry standards for call control - Session Initiation Protocol (SIP) and H.323. What this means is unlike the peer-to-peer based systems, SJPhone isn't limited to calls between two computers running the same client software or restricted to using one company's gateway systems for accessing Plain Old Telephone Systems (POTS).
The SIP protocol is very commonly used by internet telephone service providers to set up calls - it can be configured to allow direct calls from one SIP client to another or to handle calls via a SIP proxy. It carries another protocol, called Session Description Protocol (SDP) which defines characteristics of each call including the codec to be used with Real Time Protocol (RTP) once the call is established. Voice codecs are different ways of encoding the audio voice signal and are used to ensure the best call quality over a given link - for example, the g711 codec has excellent call quality but needs a lot of bandwidth. The g729a codec doesn't sound as good on a local network, but because it needs less bandwidth a call over a modem connection will sound a lot better when it is used. H.323 is a competing protocol to SIP and can also be used for direct calls between clients, but it is more commonly used to connect to gateways such as Cisco routers which then handle the call.
The most striking feature of SJPhone is that it supports skins. In its basic form the client is a very uninspiring Windows button and tab-driven affair, but it comes with two other skins which provide mobile-phone style interfaces with simple buttons for accessing contacts, conferencing, transferring and muting calls. The contacts interface provides lists of missed, received and dialed calls, contacts from Microsoft Outlook, speed dials and standard contacts entries. It has a neat feature of identifying other Sip or H.323 capable clients on a LAN and showing them on the neighbors tab.
Other than the contacts tab and the main dialer window the only other thing to SJPhone is the options window. SJPhone keeps the interface simple by doing most things automatically - instead of running through an audio setup wizard and tuning microphone and speaker volumes, in SJPhone a click on the audio setup tab's "Automatically adjust microphone volume" is all that is needed. This philosophy extends throughout the product, which makes the interface seem a bit bare compared with other VoIP clients. The options include the ability to automatically accept incoming calls, to ignore all calls, define hotkey operations and to choose skins. Most importantly, SJPhone allows multiple session profiles. This allows the end user to configure any number of internet telephony providers that can provide a low cost gateway between the internet and POTS handsets around the world. Use one in Britain for calling friends in London, one in the US for calling New York and switch between them instantly. Combine that with a simple interface and SJPhone is a winner, it just needs some cooler skins.
Join the Good Gear Guide newsletter!
Microsoft L5V-00027 Sculpt Ergonomic Keyboard Desktop
Epson WorkForce ET-4550
Smart LED Bulb LB130
Lexar® JumpDrive® S57 USB 3.0 flash drive
Epson EcoTank Expression ET-2500
Everki ContemPRO Roll Top Laptop Backpack
Linksys AC5400 MU-MIMO Gigabit router
Samsung portable 1TB T3 drive
Huawei Mate 9
Lexar® Portable SSD
Acer Swift 7
Logitech G403 Prodigy mouse
Google Daydream VR headset
Epson WorkForce DS-360W
Lexar® JumpDrive® S45 USB 3.0 flash drive
Belkin MIXIT Metallic Lightning to USB Cable
3SIXT Ultra HD Sports Action Camera
Blade 28 backpack by Arc’teryx
HP Pavilion x360 13”
Audio-Technica ATH-ANC70 Noise Cancelling Headphones
Lexar® JumpDrive® C20c USB Type-C flash drive
Lexar® Professional 1800x microSDHC™/microSDXC™ UHS-II cards
Dell XPS 13 laptop
Dell Inspiron 5000 series 2-in-1
Surface Pro 4
Garmin Fenix Chronos smartwatch
HD Pan/Tilt Wi-Fi Camera with Night Vision NC450
Most Popular Reviews
- 1 Gigabyte Aorus GA-AX370-Gaming 5 AMD Ryzen AM4 motherboard review
- 2 Kogan curved 4K UHD 55-inch LED LCD TV review
- 3 Panasonic Blu-ray recorder PVR set-top box review
- 4 Garmin Fenix Chronos fitness tracker smartwatch review
- 5 Star Wars Death Star Bluetooth levitating rotating speaker review
Latest News Articles
- 10 powerful, obscure Windows keyboard shortcuts you should know
- Microsoft delays tools for third-party Cortana integrations
- Samsung unveils Bixby voice assistant for upcoming Galaxy S8
- Pwn2Own hacking contest ends with two virtual machine escapes
- It's time to turn on HTTPS: the benefits are well worth the effort
PCW Evaluation Team
A smarter way to print for busy small business owners, combining speedy printing with scanning and copying, making it easier to produce high quality documents and images at a touch of a button.
I've had a multifunction printer in the office going on 10 years now. It was a neat bit of kit back in the day -- print, copy, scan, fax -- when printing over WiFi felt a bit like magic. It’s seen better days though and an upgrade’s well overdue. This HP OfficeJet Pro 8730 looks like it ticks all the same boxes: print, copy, scan, and fax. (Really? Does anyone fax anything any more? I guess it's good to know the facility’s there, just in case.) Printing over WiFi is more-or- less standard these days.
As a freelance writer who is always on the go, I like my technology to be both efficient and effective so I can do my job well. The HP OfficeJet Pro 8730 Inkjet Printer ticks all the boxes in terms of form factor, performance and user interface.
I’d happily recommend this touchscreen laptop and Windows 10 as a great way to get serious work done at a desk or on the road.
Ultimately, I think the Windows 10 environment is excellent for me as it caters for so many different uses. The inclusion of the Xbox app is also great for when you need some downtime too!
For me, the Xbox Play Anywhere is a great new feature as it allows you to play your current Xbox games with higher resolutions and better graphics without forking out extra cash for another copy. Although available titles are still scarce, but I’m sure it will grow in time.
- Samsung Galaxy A5 2017 phone: Full, in-depth review
- Subaru XV 2017 review
- LG G6: unboxing, hands on review and detail shots
- Which flagship TV is best? Sony 4K HDR Bravia 2016 versus LG 4K HDR OLED 2016
- 10 Blu-ray movies / Best looking Blu-ray movies
- FTSocial Media ExecutiveNSW
- FTInfrastructure Designer - Citrix AWSNSW
- FTNodeJS DeveloperNSW
- FTSOE Team LeaderACT
- CCAutomation Test AnalystQLD
- FTResponsive Design Developer, Frontend, PHP, WordpressNSW
- FTSenior Java Developers (Several positions available)QLD
- FTJunior Network EngineerNSW
- FTCCTV Sales & SupportNSW
- FTHelpdesk TechnicianVIC
- FTDatabase DeveloperACT
- FT.Net Solutions DeveloperSA
- TPSolution Architect - Integration - Bespoke ProjectQLD
- FTInformation Security ConsultantACT
- FTLead Network Project ManagerNSW
- CCTest Manager with PV Security ClearanceACT
- FTFull Stack Web DeveloperNSW
- CCProject AdministratorNSW
- FTJunior-Mid Level Implementation CoordinatorQLD
- FTSenior Java EngineerACT
- FTSenior C++ EngineerACT
- FTProgram Learning Capability Manager, Financial ServicesNSW
- TPUnix- Technical Support OfficerVIC
- FTInfrastructure ArchitectVIC
- CCBusiness AnalystNSW