[quote=“kenn10”][quote=“RamonFHerrera”]General comments are most welcome, but for a more specific question, how’s this one: can I buy an Avaya IP phone by itself? How well (or bad) will it work with Asterisk?
Avaya phones are not completely open SIP compliant yet. The 46xx series will work with Asterisk provided you don’t try to use the message waiting indicator. The new 96xx phones are much more open and compliant. All Avaya digital phones (24xx, 64xx, 84xx) are Avaya proprietary only.
There are several IP versions of Avaya systems. First, on the small business end, you have the IP Office. There is also the One-X Quick Office series which is based on the Nimcat product formerly sold as the Aastra Venture IP system but reworked to fit into the Avaya product family.
On the enterprise side of the house, the S8xxx media servers offer a wide range of features. Feature rich adjuncts and built in system functions are what sway most people to buy or stay with Avaya. The largest customers are the call center customers who wish to embrace extensive vectoring, expert agent selection, call management system reporting, workforce management, and encrypted IP communications. The concept for business to flatten, consolidate and extend communications is where Avaya systems perform best. Companies such as Delta Airlines, Home Depot, Coca Cola, Disney, NBC, GE, Smith Barney, Citigroup, etc. are all large Avaya customers.
The reason people are willing to pay higher prices for Avaya systems is the global services organization, they install and repair what they sell, provide continual competitive upgrade paths for legacy customers, and the product quality is uncompromised. Open systems cannot compete with that concept for people who are looking for the “five 9’s” of uptime.
One thing that holds Asterisk back is that the simplest feature of shared call appearances (not shared trunks) across phones (such as boss/secretary arrangements) which has been inherent to PBX’s since the Bell System is one thing most users want. Asterisk still isn’t able to provide that. Customers demand it.
Public reports indicate that Avaya wishes to become an applications oriented company and move away from hardware sales and support. Their software can already be run on HP servers which are customer provided.
For intercommunitcation with Avaya S8xxx media servers, you can do H.323 on a base system or SIP trunking if they have a Sip Enablement Server attached. Traditional PRI and QSIG may also be used.
Check support.avaya.com for a wealth of information on the products.
As to buying an Avaya phone to play with, Google is your friend; as is EBay.[/quote]
It is refreshing and rare to see material with such depth and quality in this forum.
I would like to encourage you to add this material and similar to Wikipedia. You deserve a wider audience (or readership).