VOIP – SIP Trunks
Boundary IT Services offer a selection of VOIP services aimed at small to medium businesses. VOIP can offer flexibility and cost savings unmatched by traditional analogue telephony.
VOIP via SIP Trunks
A SIP trunk is best considered as an IP phone line, similar to existing telephone lines but provided over a broadband connection rather than a typical copper/cable line.
Typically SIP Trunks will be supplied as an alternative to ISDN 2 or ISDN 30 lines.The latest telephone systems usually accept the direct connection of SIP Trunks in the same way as ISDN. Some older systems may need a converter box which enables them to be treated as if they were ISDN circuits. We can advise on preferred converter boxes.
SIP trunks typically suit greenfield phone system installations, i.e. new sites, or existing sites being upgraded for the years to come. SIP trunks significantly reduce the cost of ISDN line rentals but a typical installation may also have ISDN lines as a backup.
- Significantly lower install and rental costs than ISDN
- Add channels quickly and easily
- Free calls between connected group SIP or Featureplus sites
Please feel free to contact us for a no obligation quotation, or to discuss any aspect of your telephone systems.

