Secure SIP Trunks
Don’t pay more than you need to for business calls. Without compromising on voice quality a dedicated SIP trunk will provide the savings you deserve.
What is a SIP Trunk?
A SIP Trunk replaces the need for expensive PSTN, ISDN, FRI or PRI copper lines and it allows you to make an receive voice calls using your existing broadband connection (as long as it’s of good quality). The billing model for Calls made via your SIP Trunk
Benefits of a SIP Trunk?
- Reduce cost of calls without compromising on quality
- Retain existing numbers
- No monthly line rentals
- Reduce or remove landlines
Lines & Calls SIP 1
- 4 Voice Channels
- 10 DDIs
- Unlimited IRL Landline Calls
- Unlimited UK Landline Calls
- Negotiate Your Own Mobile Rates
Lines & Calls SIP 2
- 8 Voice Channels
- 20 DDIs
- Unlimited IRL Landline Calls
- Unlimited UK Landline Calls
- Negotiate Your Own Mobile Rates
Lines & Calls SIP 3
- 12 Voice Channels
- 50 DDIs
- Unlimited IRL Landline Calls
- Unlimited UK Landline Calls
- Negotiate Your Own Mobile Rates
Lines & Calls SIP 4
- 16 Voice Channels
- 100 DDIs
- Unlimited IRL Landline Calls
- Unlimited UK Landline Calls
- Negotiate Your Own Mobile Rates
Lines & Calls SIP 5
- 32 Voice Channels
- 200 DDIs
- Unlimited IRL Landline Calls
- Unlimited UK Landline Calls
- Negotiate Your Own Mobile Rates
Call Rate Cards
The days of massive savings on phone bills are probably all but over. However, we see call billing as a service itself. HCS doesn’t believe in non-transparent under-utilised bundles. We believe in simple and clear call billing at very low rates.
All we need is a copy of your full telephone bill for analysis and we’ll tell you what we would charge for the same calls. More often than not, we can lower your costs at the same time as providing a transparent and clear bill.

Call us today on 01 873 4120 for a FREE consultation
Our SIP Trunks are interoperable with a range of systems including
