DSP9303 Intercom Server

Features

● Busy Lamp Field (BLF)
● Caller ID Display
● Do Not Disturb (DND)
● Web Extension (WebRTC)
● Extension User Interface
● Call Logs (up to 500,000 records)
● Call Queue
● Call Parking
● Call Forwarding
● Call Transfer
● Call Waiting
● Call Recording
● One-Touch Recording
● Video Calls
● Voicemail
● Paperless Fax
● Audio Conferencing
● DISA
● Paging & Intercom
● Direct Inward Dialing (DID)
● Call Blacklist
● Smart Direct Line
● Quick Installation Wizard
● Dialing Permissions
● Feature Codes
● Wake-Up Call Service
● One Number, Multiple Devices
● Music on Hold
● Phonebook
● LDAP Server
● Departments (Ring Groups, Pickup Groups)
● Automatic Phone Provisioning
● Automatic Extension Expansion Module Provisioning
● Speed Dial
● SIP & IAX Extension Registration
● DHCP Server
● System Backup & Restore
● T.38 Fax Passthrough
● USB Extended Storage Support
● GeoIP Security Policy
● Audio Codecs: G.722, G.711-Ulaw, G.711-Alaw, G.726, G.729, GSM, SPEEX, Opus
● Video Codecs: H.261, H.263, H.263+, H.264, VP8
● VPN Server (PPTP / OpenVPN)
● VPN Client (PPTP / OpenVPN)

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Introduction
Specification

This series of intercom servers is a multifunctional unified communications device for small and medium-sized enterprises worldwide. Based on the SIP standard and featuring a modular design, it integrates a wide range of functions including VoIP telephony, virtual fax, audio conferencing, call recording, Busy Lamp Field (BLF), and paging/intercom. The system is easy to manage and maintain, with simple upgrades and capacity expansion. It is an ideal solution for SMEs to quickly build their own unified communications system, enhancing corporate image and improving operational efficiency.

The DSP9302 and DSP9303 feature a removable modular design, with each device equipped with two module slots. The DSP9301, on the other hand, uses an onboard module design.

Model	DSP9301	DSP9302	DSP9303
Number of Extensions	Up to 100	Up to 200	Up to 600
Concurrent Calls	Up to 30	Up to 60	Up to 150
Concurrent Conferences	Up to 30	Up to 60	Up to 150
Recording & Voicemail Storage	Up to 400 hours	Up to 15,000 hours	Up to 15,000 hours
Memory	1 GB	1 GB DDR3	1 GB DDR3
Storage	8 GB SD Card	1 TB HDD	1 TB HDD
Busy Lamp Field (BLF)	Supported
Caller ID Display	Supported
Call Queue	Supported
Call Forwarding / Call Transfer / Call Waiting	Supported
Call Recording	Supported
DISA & Paging / Intercom	Supported
Audio Codecs	G.722, G.711-Ulaw, G.711-Alaw, G.726, G.729, GSM
Video Codecs	H.263, H.263+, H.264
Dialing Permissions	Supported
One Number Multiple Devices	Supported
Music on Hold	Supported
Skype for SIP	Supported
SIP & IAX Extension Registration	Supported
Network Access	Static IP / DHCP / PPPoE
System Backup & Restore	Supported
HD Video Calls	Supported
Web Extensions (WebRTC)	Supported
Operating Temperature	0 °C–40 °C
Storage Temperature	-20 °C–55 °C
Humidity	5–95% RH, non-condensing

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