Maximise your call quality.
SIP is the ideal replacement for ISDN as it provides you with the ability to make and receive calls whilst utilising the benefits of IP technology.
Is SIP Connect The Right Solution For You?
SIP trunking is a flexible, lower cost alternative to ISDN lines for inbound and outbound voice calls. It allows your business to experience the benefits of a hosted solution without removing its legacy telephone equipment.
All you need is:
✔ A compatible IP-PBX or Gateway
✔ Connectivity (Broadband or Ethernet)
SIP vs ISDN
Feature | ISDN | SIP |
---|---|---|
Maximum Channels | 30 then you must install a new bearer | Unlimited |
Inclusive Calls | No | Yes |
Number Flexibility | Additional cost for out of area routing | Yes |
Future Ready | No – Available until 2025 | Yes |
Speak to one of our experts
Reasons to choose Daisy SIP Trunking

Reduce Costs
SIP Trunking can save on call costs and line rental changes, business continuity and calling and network features in comparison to traditional fixed line service.

Number Flexibility
Unable to take your number to your new office? With Daisy SIP trunks, this isn’t a problem as you can use area codes from anywhere in the UK and point your non-geographic to your SIP Service.

Fraud Prevention
The cost of telecoms in an ever increasing figure, with our SIP trunking services you can protect your business with multiple fraud prevention methods.

Peace of mind
With Daisy SIP we can provide automatic failover to your other sites, the ideal solution in the event of a disaster or unforeseen event such as an office power cut to keep your business running smoothly.
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