Last updated: August 2026
Calla provides an automated missed-call text-back service for small businesses. These terms apply whenever you sign up to use Calla.
Calla monitors your existing business phone number for missed calls. When a call goes unanswered, Calla automatically sends the caller a text message on your behalf, and logs the call as a lead for you to follow up on. The service works alongside your existing phone number — we do not replace, port, or take ownership of it.
Setup is a one-off fee of £100, which covers configuration and testing of the service on your number. A standard monthly fee of £35 then applies, billed monthly from the date the service goes live, covering ongoing running costs and support.
Customers who sign up using a valid referral code pay a reduced one-off setup fee of £75, and a reduced monthly fee of £25 for their first three months, reverting to the standard £35/month afterwards. Referral pricing is offered at Calla's discretion and may be changed or withdrawn at any time without affecting customers already receiving it.
You may cancel the monthly service at any time by contacting us, with cancellation taking effect at the end of the current billing month. The one-off setup fee is non-refundable once the service has been configured and tested, as it reflects work already completed.
To send a text-back message, Calla processes the phone number of anyone who calls your business and doesn't get through. This is used only to send that message and log the lead for you — see our Privacy Policy for full detail on how this data is handled.
We take reasonable care to keep the service running reliably, but Calla depends on third-party providers (including phone network carriers, messaging providers, and hosting infrastructure) that are outside our direct control. We aren't liable for delays or interruptions caused by outages or issues with these third parties.
We may update these terms from time to time as the service develops. Where a change materially affects you, we'll let you know directly rather than relying on you checking this page.
Questions about these terms can be sent to callaclients@gmail.com or by phone on 07495 750892.
This is a plain-English starting point written for a new, small service business, not a substitute for professional legal advice. Worth having a solicitor review it once the business is trading at volume.