Available in: Jersey
Overview

JT’s SIP (Session Initiated Protocol) service is replacing our legacy ISDN 2 and ISDN 30 products. JT SIP connects your PBX directly and securely to the JT public telephone network via a private IP connection to carry your inbound and outbound voice calls.
JT SIP provides a highly-flexible alternative to ISDN. Compared to traditional ISDN services JT SIP Trunks are more flexible in terms of the number of voice channels you can have.
Our service can support connections ranging from two channels for businesses with small PBXs, with no limit on the number of channels that can be supported for large enterprises and contact centres.
JT SIP connects your PBX to JT’s IP Core, enabling full PSTN breakout on the public telephone network utilising our full fibre network. The connection from your site (or sites) to our network is via a dedicated and secure IP connection and is delivered as an end-to-end service with voice channel guarantees.
Unlike ISDN, SIP trunks are a highly cost-effective system that can be scaled up and down according to the requirement, enabling more effective use of IT team resources by making the provisioning of new users with voice and data systems quick and easy.
Why JT SIP?
Utilise JT’s SIP service with the following business benefits:
- Includes a fully integrated DDI solution
- Benefit from JT’s competitive fixed line tariffs
- Scalable and flexible, easily add and remove voice channels as required
- Secure and reliable connection to JT’s voice network
- Feature-rich voice service
If you are interested in learning more about JT SIP please contact our Business Solutions Team on 882345, and they will be pleased to discuss the service with you.
Resources
Call charges for JT ISDN, SIP and Cloud PBX Services
Call Charges for JT ISDN, SIP and Cloud PBX Service | |||
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Unless stated otherwise, charges shown are the per minute rate from a JT ISDN, SIP or Cloud PBX service, all calls are charged in increments of 1 minute, with a minimum charge of 7p | |||
Call Charges | |||
Destination | Daytime | Evening | Weekend |
Local landline (01534) | 0.23p | 0.23p | 0.23p |
Local mobile | 12p | 10p | 9p |
Guernsey landline (01481) | 3.5p | 3.5p | 3.5p |
Guernsey mobile | 20p | 15p | 13.5p |
UK Fixed Line | 4.5p | 4.5p | 4.5p |
UK mobile | 26p | 16p | 14p |
Speaking Clock | 20p | 20p | 20p |
Usage charges for calls, texts and data exclude GST which is added at the time of billing
National & International Charge Periods Daytime, evening & Weekend | |
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Daytime (D) | Mon to Fri, 8am – 6pm |
Evening (E) | Mon to Fri, after 6pm & before 8am |
Weekend (W) | All day Saturday & Sunday |
Call charges for non-geographic services vary. |
SIP Price Increase
On the 24th March 2022 customers migrated from ISDN2 to JT SIP will see their channel and support prices increase as per the table below. Should you require any further information on our JT SIP pricing please contact us here.
NEW JT SIP | |
Price Per Channel | £16.00 |
Connection Fee | £300 flat fee |
Change/Shift/Add | £75 flat fee |
Support | |
Ultimate Care Plus | £3.50 |
Ultimate Care | £3.00 |
Superior Care Plus | £2.50 |
Superior Care | £2.00 |