Business support
Already a customer? Start here.
Call 01908 737 500 and you will get our own team in Milton Keynes.
TISA Business support is open Monday to Friday, 9.30am to 5pm. Outside those hours, email [email protected].
The five we are asked for most
Each of these is answered here.
- Lost or stolen SIM
- Call 01908 737 500 and the SIM is blocked immediately. Replacement SIMs
- Divert my calls
- Dial **21*number# to divert every call, ##21# to cancel. Call forwarding
- Move a number to TISA
- Text PAC to 65075, then give us the code. Mobile numbers move within one business day. Keeping your number
- Leave TISA
- PAC to 65075 to take the number with you, STAC to 75075 to release it. Leaving TISA
- Check coverage at an address
- The coverage map is on the coverage checker. It is a guide to outdoor coverage, not a guarantee at a given address.
Not one of these? The business FAQs answer the rest, and every published charge is on the price guide.
Sign in
The portals are open when we are not.
Routing, users and invoices can all be changed yourself, at any hour.
- Cloud PBX portal
- Manage extensions and calls. business.tisa.one
- Bulk SMS portal
- Send and track messages. sms.tisa.one
- Service status
- Live platform status, published as it happens. status.tisa.one
Business support
Still stuck? Talk to a person.
Our support team is in Milton Keynes. Tell them the number affected and what you were trying to do, and they will take it from there.
Call
01908 737 500Monday to Friday, 9.30am to 5pm
→
WhatsApp
Message usWe reply during office hours
→
Email
[email protected]Include the number affected and your account name
→
Service status is published at status.tisa.one.