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IP Office IP412 Control Unit

With a greater internal data transfer capability than the IP406 V2, the IP412 is more suitable for meeting the needs of the small contact center or businesses with a CRM focus. The IP412 differs from the IP4060 V2 by providing a greater trunk expansion capability of up to four PRI trunks. The IP412 is a stackable unit with an optional 19" rack mounting kit. The IP412 includes:

  • 9-pin DTE Port (for maintenance or Feature Key connection for application licensing).
  • X.21/V35 WAN interface.
  • Support for up to 12 IP Office Expansion Modules:
    • Phone modules (8, 16, 30)
    • Digital Station modules (16, 30)
    • Analog Trunk Module 16
    • So8 module
  • External O/P socket supporting two relay on/off switch ports, e.g. for door entry systems.
  • Audio input port for external music on hold source.
  • Two trunk interface card slots for analog, BRI, PRI (T1, E1) or CAS (E1R2)
  • 2 internal sockets for IP Telephony expansion – voice compression modules (from 4 to 30 channels)
  • Internal socket for internal modem (2 or 12) for Remote Access Services
  • 108 Data channels
  • Up to 30 VoiceMail Pro ports
  • Two 10/100 switched Ethernet ports (Layer 3).

ip412 front annotated

ip412 rear annoated

Expansion Modules

Through support of up to twelve external Expansion Modules, IP412 can be enhanced to support a mixture of analog, digital or IP phones, to maximum of 360 phones in any combination.

If additional analog trunks are required, these can be aggregated in groups of 16 on each analog expansion module.

Data Channels

A Data Channel is used for Remote Access (RAS), Internet Access, and Voicemail sessions. A data channel is an internal signaling resource used whenever a call is made from the IP network to an exchange line (Central Office). For example, four people surfing the Internet will use a single data channel since they all share the same line to the ISP. Two people remotely accessing the Office LAN from home will use two data channels since they have dialed in on separate lines. IP extensions do not use data channels. Data channels are used for voicemail connections with a maximum of 30 available for VoiceMail Pro on a IP412.

Modems and Voice Compression modules

You can add additional hardware to the IP412 system to add one modem card (12 V.90 modems) and 2 Voice Compression Modules (VCM). Each VCM supports from 4 to 30 simultaneous Voice over IP sessions and is used for either providing networking between sites over a Wide Area Network or supporting IP Telephones and Soft phones.

IP400 Trunk Interface Cards

IP400 trunk interface cards fit into the card slots on the Small Office Edition, IP406 V2 and IP412 control units and in any slot of the IP500 when combined with the IP500 Legacy Card Carrier. They provide analog, ISDN or CAS trunk connectivity. Not all interfaces are available in all territories. The following table shows how many of each card type are supported by each of control unit.

Small Office Edition IP406 V2 IP412 IP500*
IP400 Universal Analog Trunk 4 - 2 2 2
IP400 Quad BRI 1 2 2 2
IP400 PRI E1 - 2 2 2
IP400 Dual PRI E1 - 1 (Slot A) 2 2
IP400 E1R2 - 2 2 2
IP400 Dual E1R2 - 1 (Slot A) 2 2
IP400 PRI T1 1 2 2 2
IP400 Dual PRI T1 - 1 (Slot A) 2 2


Unit Dimensions (mm) Width Height Depth
IP406 V2, IP412 and all Expansion Modules 445mm 71mm 245mm
•The recommended minimum clearance, front and rear, for the connection of cables and other devices is 75mm.


Unit Weight
IP412 Control Unit 3.0Kg
Analog 16 Module 2.9Kg
DS16 Module 3.0Kg
DS30 Module 3.5Kg
WAN3 Module 2.8Kg
So8 Module 2.8Kg
Phone 8 Module 2.8Kg
Phone 16 Module 2.9Kg
Phone 30 Module 3.1Kg


  • 0°C to +40°C. 95% relative humidity, non-condensing.

Call Capacity

Busy Hour Call Complete (BHCC) is a measure used to test IP Office systems under a high call load. For BHCC tests, each incoming call rings for 5 seconds, is answered and stays connected for 6 seconds. The BHCC figures for the different IP Office control units are listed below. Note that in some cases the BHCC figure achievable will be limited by the number of incoming trunks supported.

  • IP412 = 36000.

Telephone Extension Cable Lengths

The following table details the maximum cable lengths supported for the telephone ranges. These figures assume that standard twisted-pair telephone cable or CAT5 network cable is used.

Telephone Unshielded Twisted-Pair (UTP) - 50nf/Km CW1308
AWG22 (0.65mm) AWG24 (0.5mm) AWG26 (0.4mm)
2400/5400 Series 1200m 1000m 670m 400m
4406D Phone 1000m 1000m 400m 400m
4412D Phone 1000m 700m 400m 400m
4424D 500m 500m 400m 400m
6400 Series 1000m 1000m 400m 400m
T3 Series (Upn) 1000m 1000m 400m
Analog Phones 1000m 1000m 400m 800m

Heat Dissipation

Note that the above numbers are for reference only. For practical purposes, for example the calculation of heat dissipation, it is recommended to base environmental requirements (for example air cooling or UPS ratings) on the maximum input rating of the power supplies of the planned IP Office configuration, as follows.

In order to calculate the maximum, that is worst case, amount of heat that can be generated by an IP Office system, it is assumed that all input power is converted to heat; whether from the PSU itself, the system unit, expansion module and/or cabling.

Heat dissipation is normally measured in British Thermal Units (BTU's). A heat value expressed in Watts can be converted to BTU/hr by multiplying by 3.41297. As indicated above, you should use the maximum power input of 115 VA of each power supply to calculate this most accurately.

Using the conversion factor:

  • Heat Dissipation = 115 x 3.41297 = 392.5 BTU/hour.

The metric equivalent to BTU is a Joule where 1 BTU = 1,055 Joules.

This calculates the BTU value per power supply. The maximum BTU per system is therefore calculated, based on total number of power supplies installed in the system. For example, for a IP412, this would be 1 for the base unit and up to 12 for the expansion modules.

  • IP412 Maximum Heat Dissipation = 13 x 392.5 = 5,103 BTU/hr.

Remember to budget for the power requirements of any additional devices that are to be co-located with the IP Office such as server PC's (voicemail, etc).

Power Supply

  • Input
    • IP406 V2, IP412 and expansion modules: 2.5mm DC inlet socket. 24Vdc power input. Rating 24V DC, 2A maximum.
  • Power Supply Units: All CE/UL/Dentori Safety Approved.
    • IP406 V2 60W Power Supply Unit
      Supplied with the control or expansion unit. 60W PSU with integral lead to the unit. Connection to switched mains supply requires separately supplied country specific IEC 60320 C13 power cord (3-wire earthed cold kettle lead).
      • Input: 100-240V AC, 50/60Hz, 81-115VA, 2.5A maximum.
      • Output: 24V DC, 1.5A, output power 60W maximum.


Interface Information
DTE Port
  • 25 way D-Type female connector, V.24/V.28.
  • 9 way D-type
ISDN Ports EU Interfaces:
  • BRI:
    RJ45 sockets. ETSI T-Bus Interface to CTR3 for Pan European Connection.
  • PRI E1:
    RJ45 socket. ETSI T-Bus Interface to CTR4 for Pan European Connection.
Analog Trunk Ports
  • RJ45 sockets: Loop start/Ground start (regional dependant)
Power Fail Ports
  • RJ45 sockets:
ISDN Data Rates
  • BRI: B-channel 64kbps or 56kbps, D-channel 16kbps.
  • PRI: B-channel 64kbps or 56kbps, D-channel 64kbps.
Analog Phone Ports
  • RJ45 sockets:
  • CLI Schemes: DTMFA, DTMFC, DTMFD, FSK and UK20.
  • REN: 2. (External Bell via POT port: REN = 1)
  • Off Hook Current: 25mA.
  • Ring Voltage: 40V (nominal) RMS.
  • RJ45 sockets. Auto-negotiating 10/100 BaseT Ethernet (10/100Mbps).
  • Small Office Edition: RJ45 Ethernet socket.
  • 3.5mm Stereo Jack socket. Input impedance - 10k /channel.
  • Maximum AC signal – 200mV rms.
External Output Port
  • 3.5mm Stereo Jack socket. Switching Capacity - 0.7A.
  • Maximum Voltage - 55V DC. On state resistance - 0.7.
  • Short circuit current - 1A. Reverse circuit current capacity - 1.4A.
Embedded Voice Memory
  • 512MB Compact Flash memory card