iSpeaker C20

The SIP based audio system iSpeaker C20 utilizes the built-in intercom and paging capability already inherent in most modern IP PBX systems and enhances this to improve end user experience by providing a dedicated high performance digital amplifier on which to broadcast announcements or play background music.


Basic Features
Support G.711,G.722,G.723,G.726,G.729 audio codecs
Support SIP2.0 (3261)and related RFC protocol
Support Power over Ethernet(PoE) 
The DSP integrated echo cancellation and noise suppression provides clearer voice
Easy management and configuration from Web interface
Support encrypted communication 
Online update of software



Basic Information
Telephony Protocol: SIP 2.0(RFC3261)
Keypad Expansion: Support 4×6 for a total of 24 keys.  

Microphone: 1 onboard connector
Speaker Output: 3.5W
Speaker Impedance:4Ω
Headset: 3.5mm standard input/output interface
DSP: Support echo cancellation and noise suppression 

Voice Flood
Supported protocol: RTP
Codec: G.711,G.722,G.723,G.726,G.729, etc..

Other Interface
Input Power: 5V/1A DC
PoE: PoE 802.3af (Class 0 - 12.95W)
LAN: 2x10M,RJ45
RS232: Optional
GPO: 4 programmable output pins

Operation Temperature: 0℃ to 40℃ 
Storage Temperature: -40℃ to 70℃ 
Humidity: 10% to 95%,No Dew

System Topology


                                    Connect With Audio Speaker


                                    Connect With Audio Amplifier

                                    Paging and Intercom


Inner box  265mm × 115mm × 60mm
G.W./unit  0.5 KG



Name Version Size Release Date Download
iSpeaker Firmware V1.1.3 V1.1.3 5.90 MB Aug. 10, 2017
iSpeaker C20 Datasheet V1.0 646.55 KB Aug, 31, 2015
SIP Speaker UserManual V1.0.0 910.41 KB Dec, 15, 2015
iSpeaker Firmware V1.1.0 V1.1.0 5.60 MB Sept. 9, 2016
iSpeaker Firmware V1.0.9 V1.0.9 5.81 MB Aug. 10, 2015
iSpeaker Firmware V1.1.2 V1.1.2 5.86 MB Mar. 28, 2017