The Avaya IP Office, Avaya’s best selling phone system is a hybrid system 
which can use digital or analog Avaya phones with it. Because it is a hybrid 
digital/IP system care needs to be taken when wanting an IP system that it is 
actually configured with IP licensing and not just a digital phone system with 
later capabilities to add IP at an additional cost (unless you understand that). Avaya IP Office has 
been a popular 
choice for small and medium size businesses although in January 2017 Avaya filed 
for bankruptcy. In early 2018, the company emerged with a new leadership team 
and a revised strategy of cloud-first architecture among other new technologies. 
Unfortunately, recently Avaya filed its second bankruptcy, but since has reemerged 
as a private company.
You can find and download your Avaya manual in PDF format below. As there are many Avaya phone systems we hope you will be able to do some of the system programming yourself with the help of the proper manual.
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If you're thinking about replacing a business phone system, then why not see which one of these systems will suite your needs and keep you in budget. Ten Best on premise PBX Phone Systems
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Avaya IP Office 1616 Phone Quick Guide
Avaya IP Office 2410 Phone Quick Guide
Avaya 2410 Digital Telephone User Guide Rel 2
Avaya 2420 Digital Telephone User Guide Rel 4
Avaya 4602 SIP Telephone SIP Rel 1.1 User Guide
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Avaya 4610SW IP Telephone Rel 2.1 User Guide
Avaya 4620 4620SW IP Telephone Rel 2.1 User Guide
Avaya D 4624 IP Telephone Rel 1 User Guide
Avaya 
5610 and 4610 Phone User Guide
Avaya is a worldwide communications company known for its enterprise 
communications systems. The company provides Unified Communications, Contact 
Centers, Data solutions and related services directly and through its channel 
partners. Starting as At&t the company that would become Avaya was part of 
Lucent Technologies. In 2000 Lucent decided to spin off a portion of their 
business that became Avaya, which later bought a large part of failed Nortel. 
Today Avaya distributes their licensed Avaya phone systems through dealers. 
In January 2017 Avaya filed for bankruptcy. In early 2018, the company emerged 
with a new leadership team and a revised strategy of cloud-first architecture 
among other new technologies. Avaya then teamed up with RingCentral to 
provide cloud based PBX phone systems and 
other cloud solutions including video. However, the heavy debt load that it 
carried proved too much. After long negotiations with their creditors, who held 
3.4 billion of its debt, Avaya filed, once again, for chapter 11 bankruptcy on 
February 14, 2023, but since has exited bankruptcy as a private company.
In the earliest pre-years starting back in 1994 Network Alchemy was founded. 
After three years they were acquired by SDX Business Systems who were then 
almost immediately bought by Lucent Technologies. Avaya actually came into being 
in 2000 and after two years released the first Avaya IP Office system. In 2003 
the IP Office used the Avaya 4602 phone with an IP 412 control unit. The system 
was upgraded to version R2 that included a larger screen desk phone, the Avaya 4620. 
The IP Office system was growing quickly in popularity.
In 2004, a R3 version was 
rolled out and with it came a new line of phones, the Avaya 5402, 5410, 5420 and 
the 5600 line with the 5601, 5602, 5610 and 5620. The upgraded system also 
supported the earlier phones. The next several years brought several minor 
revisions with added features and the integration with Microsoft's CRM software.
In 2006 the IP Office v4 was released with a new KSU, the IP500 and three newly 
designed desk-sets, the Avaya 9610, the 9620 and the 9630. These models were 
quickly followed by two handheld models and two more 9600 series desk phones 
with the rev 4.1 update. 2008 brought revision 4.2, three new desk-set phones, 
the Avaya 1603,1608 and the 1616 and the highly sought after feature voicemail 
to email.
2009 started an expansion phase for Avaya when they acquired Nortel 
and then went on that same year with the IP Office R5 and a year later the R6 
that included a doubling of the system capacity and the newer KSU, the IP 500 
V2. Then in 2011 came the R7 version of the IP Office and support for many of 
the Nortel telephones and quickly afterwards the R8 version. 
2012 and 2013 was noted for integration with Microsoft Lync and a large increase in capacity with R9 the Server Edition of IP Office.
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