IP Server 900 Programming Manual General description
A.1
General description
ESI’s IP Server 900 is a high-performance IP phone system that unites the communication and productivity
needs of end users in small-to-medium organizations with one or more sites. The IP Server 900 represents the
latest generation of ESI’s advanced communications systems, and provides much more than standard phone
service. The IP Server 900’s powerful Voice-over-IP (VoIP) features allow your customers to transition smoothly
from traditional circuit-switched telephony to cost-efficient IP-network-based telephony. VoIP features include
support for SIP phones and trunks, ESI IP phones, VIP 7 Softphone, and T.38 Fax-over-IP. Standard features
include voice mail, automated attendant, automated call distribution (ACD), external paging interface, and
extensive call coverage features (such as off-premises “reach-me”). Optional features include
computer/telephony integration, video and audio recording, and presence management.
You, or an Administrator, can program the system locally or remotely through either a phone or over Ethernet
®
with ESI’s browser-based IP Server 900 Web ESI System Programmer application through the system’s built-in
Network Services Processor (NSP).
Important: Except where noted, the remainder of this “General description” chapter describes only features, rather than
any system capacities. For system-specific capacity specifications — e.g., CO lines, ports, message
storage, etc. — see “System capacities” (page B.1).
The 48-Key Feature Phone has a dedicated PROGRAM key. If performing this programming with a 48-Key
Feature Phone, press PROGRAM whenever the instructions tell you to press PROG/HELP.
Telephone system features
• SIP trunking support — Connect the IP Server 900 to an Internet Telephony Service Provider (ITSP) in
order to use the Session Initiation Protocol (SIP) VoIP standard to connect to the PSTN over the Internet.
SIP trunks can provide a significant cost savings over traditional CO lines, particularly by lowering or
eliminating long distance toll charges.
• T.38 fax support — Due to the error-correction necessary in processing VoIP audio, faxes can often
become distorted or get lost altogether. The IP Server 900 SIP trunks allow the transmission of faxes over
the industry-standard T.38 protocol to ensure that faxes can be sent and received correctly. For more
information about T.38 faxing on the IP Server 900 see the IP Server 900 Fax-over-IP Feature Overview
(ESI document # 0450-1355).
• ESI fax over e-mail — Receive faxes and have them converted to a PDF file and sent as an email
attachment to a predefined email address. For more information about the IP Server 900’s internal fax server,
see the IP Server 900 Fax over e-mail Feature Overview (ESI document # 0450-1354).
• T1 and PRI support — Conventional high-bandwidth digital CO lines are fully supported.
• ESI phones — Compact and stylish, yet rugged, each ESI phone includes a high-quality speakerphone,
large and informative multi-functional display, and a specially designed key layout with several dedicated
keys to minimize or eliminate the need to memorize codes. The following models are supported on the IP
Server 900:
• ESI 60 Business Phone — Digital and two IP (Gigabit Ethernet and 10/100 Ethernet) versions. Each
includes an integrated headset jack, a backlit display, and full-duplex HD-quality speakerphone.
• ESI 40 Business Phone — Digital and IP (10/100 Ethernet) versions. Each includes an integrated
headset jack and a backlit display.
• ESI 30D (digital) Business Phone.
• 48-Key Feature Phone — Digital and IP (10/100 Ethernet) versions. Each includes an integrated headset
jack, a backlit display, and full-duplex speakerphone.
• ESI Cordless Handset II — Available in digital and two (local and remote) IP versions.
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• Extensive help — ESI’s Verbal User Guide
™
uses spoken and displayed help prompts to help everyone from
the Installer through the Administrator down to the least experienced end user. Easily accessible with one
press of the PROG/HELP key. One can also visit www.esi-estech.com/support for help.
• Enhanced Caller ID — Allows one-touch automatic message return.
1
An IP Server 900 passes Caller ID
data to both digital and analog ports.
1
See also the IP Server 900 Hardware Installation Manual (ESI document # 0450-1305).
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