System Features

  • Full integration
    One cabinet contains a phone system, voice mail/automated attendant, and automatic call distribution — all working together as an integrated whole.
  • Standards-based IP design•
    Each ESI Communications Server’s IP capabilities are supported by compliance with these major industry standards:
    • UDP
    • Layer 3 Quality of Service (QoS) support via DiffServ
    • G.711, G.726, and G.729 packet compression
    • 802.3 100Base-TX Ethernet interfaces
    • Layer 2 QoS support via compliance with 802.1p and 802.1q
    • 802.3af Power over Ethernet (PoE)
    • DHCP
    • SIP
  • Message-on-hold (MOH) recordings
    This feature provides a professional sound without licensing fees. Use the three supplied music tracks, or record and use up to nine of your own.
  • Auto attendant
    Provides extensive call routing, including directories, automatic day/night operation, off-premises transfer, cell phone and pager notification, and more.
  • Automatic call distribution (ACD) •
    ACD places sales or service personnel in departments and either (a.) routes a call to the longest-idle agent or (b.) places the call on hold if all agents are busy and then immediately connects when the first agent is available. Constantly updates Feature Phone display regarding queues and wait times.
  • Highest voice quality
    Records voice messages with 64-kilobit-per-second sampling, for the highest quality sound a telephone line can carry.
  • Account codes
    Let you verify client billing and manage time more accurately by inserting one or more numerical codes during a call.
  • Call statistics
    Delivers detailed reports at the touch of a key and provides SMDR.
  • T1/PRI support •
    Lets larger offices make fullest use of broadband lines.
  • Up to 384 fully functional analog ports
    Each allows voice mail, park/retrieve, transfer, page, call waiting, off-premises message delivery and more. Analog ports also allow use of optional ESI Presence Management.
  • Conference calling
    An ESI Communications Server supports up to 64 conference callers, with up to 16 persons per conference.
  • Esi-Dex speed-dialing
    Calls any number from three separate lists (personal, station and system); uses Caller ID information or direct keypad entries.
  • Intelligent Call Forwarding™ •
    Forwards calls to you when you’re away from the office and sends along the real caller’s original Caller ID information (if it’s someone calling from another extension on your ESI business telephone system, you even see his/her extension number), so you can see who the real caller is.
  • Shared-office tenanting •
    Allows multiple business entities to share the same system while maintaining separation of various facilities and features. Depending on the model, an ESI Communications Server supports up to eight tenants.
  • TAPI support
    (Basic Telephony Service.) Provided via an optional VIP application.
  • Dedicated overhead paging interface
    Allows intra-system paging through the speaker built into the ESI Feature Phone or through an ancillary overhead paging system.
  • Optional ESI Presence Management
    • Presence indication
    • Access control
    • ESI’s Personal Call routing
    • Time and attendance logging (further enhanced by optional ESI TimeLine PC software)