AddPac IPNext190 Installation Manual page 12

IPNext 190 System Installation Guide
address. In such a private IP address environment, the RTP proxy feature is required for reliable
multimedia communications between endpoint terminals. The RTP proxy feature of IPNext190 is used to
make a communication between a private IP terminal and a public IP terminal among endpoint terminals
such as IP phones, make a communication between a private IP terminal and a public IP terminal in the
NAT environment, make a communication between private IP terminals, make audio/video broadcasting
in private and public IP environments, and to enable audio/video conference calls in private and public IP
environments. The RTP proxy feature can operate regardless of VoIP signaling protocols such as H.323
and SIP, and supports dual address systems such as IP version 4 and IP version 6 addresses.
3) User Presence Service for Unified Communication
For enterprise with small number of employee, IPNext190 IP keyphone system supports the user
presence server function beside call manager function. But, in case of large enterprise, external User
Presence Server should be used with IP-PBX due to performance issue independently. In order to support
user presence features on real-time basis, such as user busy, on-line, user away, etc, user presence service
function should be provided on IP telephony solution. User presence service function in a Call Manager
gathers user information (on-line, busy, etc) of each IP terminals, and broadcasts user information to all
or group IP terminals with speed-dial keys (built-in presence indication lamp) , AP-PT100 User Presence
dedicate terminal, Smart Messenger Program at every second.
4) Intelligent IVR Features
One of the most important IP telephony service features is either ARS or IVR. Different IVR features are
required by regular companies, government offices, and call centers respectively. IPNext190 IP
Keyphone System provides an IVR tool to meet your requirements. Also, this solution provides an IVR
scenario editor to allow you to make and enable a desired call scenario.
5) Built-in Network based Media Service
AddPac Technology's IPNext190 supports network-based media service. Together with IP terminals,
Video Terminals and VoIP gateways, IPNext190 supports various media service like as Announcement,
Ring Back Tone Service, and Music on Hold.
The media service of IPNext190 provides Ring Back Tone and Music on Hold either individually or by
group. Ring Back Tone and Music on Hold files can be changed by Schedule. The media service has
been designed to support the video codec of MPEG-4 basically, the services of multimedia Ring Back
Tone and multimedia CID (MCID)*.
6) Unified Messaging Service
IPNext190 supports network based unified messaging service like as IP phone voice mailing service, E-
mail notification, and web based Mailbox browsing service, etc. Basically, this service supports SIP
AddPac Technology Proprietary & Documentation 132 - 12