DOS A50-8G Capacity • System Capacity Maximum Analog PSTN Line: 8 Maximum Extensions :50 Interface • Line Interface 2 Modules each with 4 FXO ports (8 FXO ports total) Loop start analog lines RJ11 connector (1 pair) • LAN Interface 10/100/1000 Mbps auto-sensing 1 RJ45 Connector • USB 3 USB port for future expansion USB 2.0/1.1 compliant
• Audio Port 1 line out jack for external PA system 1 line in jack for future expansion • On-box Management 2 × 16 characters, 5 x7 dot LCD 4 way/Enter button for selecting option IP button for checking IP address Reset button for restart the DOS-A50 Tri-color LED for system status checking • Event Log Ease of troubleshooting/administration Protocol and Voice • Protocols SIP 2.0 (RFC-3261) RTP (Transfer Protocol) • Voice Codec VAD (Voice Activity Detection) CNG (Comfortable Noise Generation) Line echo cancellation (G.168) Adaptive Jitter Buffer Management G.711 (u-law) • Caller ID Bellcore/DTMF
Main Features • Auto Attendant Up to 8 concurrent calls processed by auto attendant Speech recognition, including nickname Automated answers to frequently asked questions such as location, hours of operation, and FAX number Contact directory • Voicemail Built-in voicemail system Voice mail messaging forwarding to E-mail Approximately 100 hours voicemail storage • Outlook Integration Import contacts from Microsoft Outlook Voice dialing to contacts imported from Microsoft Outlook
• Client Utility Customize personal settings Screen pop-ups display caller ID name and number or Outlook contact look up Call forward settings user management
• Administration Seamless setup and administration Phone auto discovery and provisioning Set up Wizards for ease of configuration
• External Access Specified number by caller ID authentication and password protected external access to user phones
• Bypass Receptionist Bypass receptionist function for specific outside calls to specific station
• All Call Ringing for Groups Ring all phones in a particular department
• PSTN Line Plug and play telephone line support Reserve specific lines for incoming calls only
Security Gateway (Optional) • WAN Interface 10/100 Mbps auto-sensing 1 RJ45 connector • Features DHCP server with NAT Static/PPPoE/DHCP for broadband type selection Support up to 20 VPN connections (PPTP/IPsec) Firewall to protect your network from internet attacks QoS bandwidth for voice traffic
Physical • Power External power adapter Voltage: 100VAC~240VAC Frequency: 50/60Hz • Dimension (L*W*H) 12½ x 10½ x 3 ½ ½ ( 315.84m m * 249.40m m * 91.36m m) • Locating Desktop/Upright/Wall mounted Environmental • Operating Temperature 32°F to 104°F ( 0°C to 40°C ) • Storage Temperature -67°F to 158°F ( -55°C to 70°C ) • Operating Humidity 90 to 95% RH at 104°F ( 4 0°C ), non-condensing • Storage Humidity 90 to 95% RH at 104°F ( 4 0°C ), non-condensing
Compliance • EMI Certification FCC part 15 Class A • PTT Regulation FCC part 68 • Safety cUL
DOP 310M Interface • LAN Interface 10/100 Mbps auto-sensing 2 RJ45 connectors with switched Ethernet port Power over Ethernet (PoE) support/compatible • LCD display 2*16 characters, 128x32 pixel graphic LCD • Handset Interface RJ9 Connector (standard handset connection)
Voice and Protocol • Silence Suppression VAD CNG • Echo Cancellation G.167 (Acoustic Echo Cancellation) • Jitter Buffer Adaptive • Voice Suppression G.711 (u-law) • Call Control Protocol SIP 2.0, Compliant to RFC-3261
Features • Call Features Call hold Call transfer Audible call waiting indicator Speaker/handset mute Redial 3 way conference Incoming call/Voicemail indicator • Function Keys with LED Voicemail/Mute/Speaker/Hold • Multiple Line Assignment Maximum 4 users/phones • Response Point button Large Response Point button for voice commands/dialing • Call History Missed calls, received calls, and dialed numbers. Automatic dialing of numbers from call history lists • Inbound Caller ID display Display on phone and on PC software popup
Physical • Power External power adapter Voltage: 100VAC~240VAC Frequency: 50/60Hz • Dimension (L*W*H) 8½ x 7½ x 2 ½ ½ ( 198.5mm * 180.5mm * 59.2mm ) • Locating Desktop/Wall mounted
Environmental • Operating Temperature 32°F to 104°F ( 0°C to 40°C ) • Storage Temperature 32°F to 158°F ( 0°C to 70°C )
• Humidity 95% Max, non-condensing
Compliance • EMI Certification FCC part 15 Class B • Safety cUL |