2.3 Product Description

2N® SIP Mic is an Ethernet SIP console designed for public sound distribution. 2N® SIP Mic can be connected to a SIP Proxy and communicate with the server via phone calls. This guarantees compatibility with all the supported SIP-based systems.

Use an integrated web interface for 2N® SIP Mic configuration. Apply the 2N® Network Scanner to search all the 2N® SIP Mic units connected.

Control Layout

2N® SIP Mic Controls


  • A ... call answer / mute button
  • B ... call extension button
  • C ... function buttons 1 to 12 for playing/announcing to zone
  • D ... bar graph – microphone drive indicator
  • E ... microphone DIN connector
  • F ... integrated speaker

2N® SIP Mic Controls

Button Function States

Each button is backlit. Different backlight colours signal different user states. See below. 

Call pick-up / Mute button

ColourBehaviourStateAction upon press
WhiteShiningAt relaxNone
GreenFlashingIncoming call ringingAnswer call
GreenShiningActive incoming callMute microphone
White + (red hang-up)ShiningMutedTurn up microphone
YellowShiningActive message recordingEnd recording
BlueShiningActive outgoing callMute microphone

Call hang-up button

ColourBehaviourStateAction upon press
WhiteShiningAt relaxNone
RedShiningIncoming / Outgoing callHang up / Reject

Function buttons 

ColourBehaviourStateAction upon press
WhiteShiningAt relaxNone
WhiteFlashingMessage playingEnd playing
BlueFlashingOutgoing call ringingEnd call
BlueShiningActive outgoing call / Zone announcementEnd call / End zone announcement
GreenFlashingOutgoing ALARM call ringing / DTMF requestNone (cannot be terminated) / End call
GreenShiningOutgoing ALARM call ringing / DTMF requestNone (cannot be terminated) / End call
PinkShiningHTTP request sentReturn to relax
YellowShiningActive relay contactAs configured, refer to Buttons
YellowFlashingActive message recording

End recording

RedShiningCall error or end

None, automatic end

With Announcement after message you can skip over the announcement and end the call immediately.

Connector Layout

2N® SIP Mic Connectors

 Connectors and controls:

  • power on/off button
  • 12 V DC / 2 A mains adapter connector 
  • relay output
  • LAN – 10/100BASE-TX RJ-45 connector
  • logic inputs
  • line input – 3.5 mm jack for optional external sound source connection
  • MIC input – 3.5 mm jack for optional microphone connection
  • Line out – 3.5 mm jack for headset / external speaker connection

Refer to the Technical Parameters for more details.


  • Pin 1 is the first logical input, isolated.
  • Pin 2 is the second logical input, isolated.
  • Pin + is connected with supply voltage (+7 V) and switches the logical input into "logical 1".
  • Pin ꓕ means grounding (GND) and switches the logical input into "logical 0".


Pins 1 and 2 are processor-monitored logical inputs. They are switched to 1 when connected to + and to 0 when connected to the GDN ground. Make sure that pin + and pin 1 are connected via a switch or relay to make them work properly. The same applies to pin 2.

Factory Reset
Press the button on the device bottom to delete all the parameters including the network settings. Hold the button until all the system button red lights go on. Then release the button. The device memory will be deleted. The default network settings are as follows:
  • IP address:
  • Network mask:
  • DHCP: ON

Refer to Subs. 3.1 Configuration for a change of the DHCP server setting.