SIP-R20

Description

Overview

The SIP-R20 series redefines efficiency for small and medium-sized businesses. Featuring a 2.3-inch backlit LCD and 13 programmable keys, it delivers a streamlined communication experience. With built-in HD audio, multi-language support, and optional dual-band WiFi, the SIP-R20 is the perfect blend of simplicity and powerful functionality.

Brightening Characteristics

• Efficient Communication: Dual SIP lines for seamless call handling.
• Clear Display: 2.3-inch backlit LCD for a bright, sharp interface.
• Simple Operation: 13 programmable keys enhance task flow and response time.
• Smooth Collaboration: Supports 5-party conferencing to boost team performance.
• Powerful Functionality: Full suite of business phone features tailored to office needs.
• Secure Communication: Integrated OpenVPN, TLS & SRTP for encrypted call privacy.
• Smart Management: LDAP-based remote address book for centralized contact sync.
• Seamless Integration: DSS expansion, speed dial, user status monitoring.
• Flexible Deployment: PoE support and optional dual-band WiFi free up desktop space.

Advanced Audio Experience

• High-Fidelity Sound: HD handset and hands-free audio with advanced noise reduction.
• Broadband Codecs: Opus, G.722 for crystal-clear voice.
• Narrowband Codecs: G.711(A/μ), G.723.1, G.729AB, G.726, iLBC.
• Smart Audio Functions:
  • Acoustic Echo Cancellation (AEC)
  • Voice Activity Detection (VAD)
  • Comfort Noise Generation (CNG)
  • Packet Loss Compensation (PLC)
  • Background Noise Detection (BNE)
  • Automatic Gain Control (AGC)
  • Adaptive RTP jitter buffer (up to 300ms)

Telephone Functions

• 2 SIP lines
• Multi-language support (18 languages)
• Caller ID with name display
• Handle / hands-free / headset modes
• Call hold, mute, blind & inquiry transfer
• Do Not Disturb (DND), call forwarding, call waiting
• BLF, DSS keys, hotline, speed dial
• Multicast, intercom, keypad lock, text messaging, emergency calling
• Direct IP calling, redial, callback, auto-answer
• Five-party conferencing, dialing rules, line sharing
• 10 built-in ringtones + custom ringtone upload
• NTP auto/manual sync
• Action URL & URI support

Address Book

• 1000 local contacts
• XML / LDAP address book
• Smart search functionality
• Import/export contacts
• Blacklist support
• Call history: 1200 entries (dialed, received, missed, forwarded)

IP PBX Features

• BLF (Busy Lamp Field)
• Voicemail support
• Anonymous call & rejection
• Call park / pickup
• Server-based call recording

Configuration & Maintenance

• Web & phone interface configuration
• Auto-provisioning: FTP, TFTP, HTTP, HTTPS, SIP PnP, TR-069
• BIN/CFG import/export
• Remote control via CSTA
• Network packet capture & diagnosis
• Factory reset (full/custom)
• Firmware upgrade support

Network Characteristics

• IPv4 / IPv6 / Dual Stack
• Static IP / DHCP
• VLAN, CDP, LLDP protocols
• SIP v1/v2 (RFC2543/3261)
• Redundant SIP servers
• NAT traversal: ICE, STUN
• Transport: UDP, TCP, TLS, SRTP
• Anti-attack SIP trust server
• HTTP/HTTPS, TR-069 support
• SNTP time sync
• QoS: VLAN tagging, ToS/DSCP
• HTTPS certificate & config encryption
• Info verification, RTCP-XR, VQ-RTCPXR
• OpenVPN, IEEE802.1X
• Optional 2.4G & 5.8G WiFi module

Phone Interface

• 1 x RJ-9 handset port
• 1 x RJ-9 headset port
• 2 x RJ-45 (10/100M Ethernet)
• 1 x DC power port
• 1 x USB 2.0 port

Product Specifications

• Display: 2.3” 132×64 LCD with backlight
• Notification: Red LED indicator
• Keys:
  • 2 SIP line keys with LED (programmable)
  • 4 soft keys
  • 12 numeric keys
  • 6 function keys (Headset, Voicemail, Mute, Call Forward, Redial, Hands-Free)
  • 5 navigation keys
  • 2 volume control keys
• Color: Business Gray
• Mounting: Desktop / Wall-Mount
• Dimensions: 187mm x 184mm x 147mm
• Power Consumption: 2–3W
• PoE: IEEE 802.3af / 802.3at
• Operating Temperature: -10°C to 50°C
• Humidity: 10%–95%