Matrix ETERNITY NE System Manual 27
Connecting to the VoIP Network
The VoIP Interface enables the extensions of ETERNITY NE to connect to the IP network and make Proxy as well 
as Non-Proxy (Peer-to-Peer) VoIP calls. 
The Mobile Ports of ETERNITY NE can also used as the WAN Interface to connect the system to the 
Internet.
Voice Channels
ETERNITY NE supports 8 Voice Channels, allowing you to make and receive 8 simultaneous VoIP calls. 
Please note that a SIP Extension-to-SIP Extension call will consume 2 channels, while a SIP Extension-to-
SLT/DKP Extension/Trunk will consume a single voice channel only. SIP Extension to SIP Trunk calls 
consume 2 channels
SIP Trunks
The ETERNITY NE supports a maximum of 4 SIP Trunks
3
.
In countries, where the provision and use of Internet telephony services and products is prohibited and or 
subject to laws, regulations or licenses, the User is advised to comply with such laws and regulations when 
installing and using this product.
Installing the VoIP Module
• Unpack the VoIP module and verify package contents.
• Make sure power supply is turned off before you begin installation.
• Unscrew and remove the top cover of the enclosure. Keep the screws and the cover aside. 
• Locate the connector of the VoIP module on the mainboard. Remove the screws on the studs for the 
module and keep them aside.
• Gently seat the VoIP module on the connector on the mainboard. The connector pins on the module must 
make complete contact with those on the mainboard. Do not apply pressure.
• When the module is seated firmly on the connector on the mainboard, secure the module with the screws 
on the studs.
• If you have no other module(s) to install, replace the top cover and secure the cover with the screws. 
3. SIP Trunks are the same as SIP Accounts. A SIP Account is an account you would get from your VoIP/Internet Telephony Service 
Provider much like you would get an email account from your Internet Service Provider.