The colour of the 4602 is a muted grey with lighter grey highlights. It weighs in at 810 grams and is the physically smallest of the Avaya handsets submitted for this review.
The buttons on the keypad are nicely dished and fit the index finger very well being slightly triangular in shape. The fonts and alphanumeric characters are large enough to pick out easily and stand out very well in white on the grey background.
The handset itself is a little on the heavy side weighing in at 197 grams. It is comfortable to hold and quite well balanced considering the weight. There is a wide, two-line LCD panel which is recessed enough to enable sufficient viewing even in quite strong lighting.
In summary the 4602 is a very neat entry-level VoIP handset with adequate features for most basic telephone users, which is reflected in its price. The good balance of features makes this a phone for the masses.
Avaya 4620
The 4620 is the same colour as the 4602, as are the buttons and the handset. It weighs 1244 grams and has an interesting tilt mechanism in the base that lifts the whole unit up off the desk.
The display is a large 168 x 80 greyscale display with 16 context-programmable keys. It's a very nice telephone with great functionality, but the temptation of a colour display may cause a few people to look at paying the extra dollars and going for the 4625.
The 4620 is for the enterprise who wants to have a context-sensitive custom designed interface at their employees' touch, or perhaps for the use of clients in public areas.
Avaya 4625
Featuring the same colour handset and buttons as the 4602 and 4620, the 4625 weighs 1353 grams and measures 210 x 220 x 110mm. In fact, the chassis looks the same as the 4620.
There are, however, a few differences -- most notably the 320 x 240 colour display with 16 context-programmable keys.
The 4625 builds on the 4620 by offering a colour display, again increasing the uses of this phone when combined with clever programming and use of the context-sensitive buttons.
While the price may not suit an organisation that needs a unit for every desk in the enterprise, it may well be worthwhile considering the benefits of a few choice location deployments of this handset within the business.
Avaya has a very good range of telephones priced from just under AU$300 to just under AU$1,000. This is particularly good if differently featured phones are required in different areas of the business as they all have a similar look and feel in relation to the main keypad, the handsets, the general shape, and colours.
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ISP's are currently battling the broadband war. The race for customer aquisition is aggressive. What is the holy grail... VoIP or basic broadband revenue? The answer lies in the current broadband price offerings of ISP's.
The cost savings of VoIP to corporations is unquestionable and the future economic benefits of widespread adoption is inevitable. One just needs to review the developments of such products as 'Skype' over the last 12 months to arrive at the realisation of just where VoIP is heading. Companies in Asia have even commenced manufacturing 'Cisco ATA type' devices which interface with skype enabling VoIP calls from your normal PSTN phone. The future of VoIP is cemented and the war for market share is definitely on.