How to Enable Missed Call SMS Auto-Reply
Send a configured text response after an eligible missed call, with separate business-hours and after-hours wording for each number.
A missed-call SMS reply lets a caller know how to reach your team when a call goes unanswered. Configure it on the business number that receives the calls. The caller's destination must support text messaging; delivery is not guaranteed for every call.
Set up the reply
- Open Settings → Phone Numbers.
- Find the business number and click its Settings action.
- Select Text Messages (SMS).
- Under Missed Calls — Text message, enable Enable SMS-Reply for Missed Calls.
- Write the business-hours response in Text Message.
- Write the closed-hours response in Text Message Out of Business Hours.
- Open Configure Business Hours and confirm the schedule used for this number.
- Click Save.
Choose useful wording
- During business hours: “[Business]: Sorry we missed your call. Reply here with how we can help.”
- After hours: “[Business]: Thanks for calling. We are closed and will follow up during our next business hours.”
Identify your business and describe the next step accurately. Keep the reply related to the caller's request; a missed call does not automatically provide consent for unrelated marketing messages. Review SMS program requirements.
Check the complete flow
- Use a phone you control and arrange one authorized test call to the configured business number.
- Let the call follow the normal unanswered-call path.
- Check whether the caller receives the reply and inspect the message in Conversations → Inbox.
- If it is missing, check the called number, saved toggle, schedule and messaging capability. Use delivery troubleshooting to inspect the result.
This configuration is per number. Repeat it for another number only if that number should use the same feature. To pause it, disable the toggle and save. Incoming-text replies and email alerts are configured separately; see Automatic SMS Replies and Email Alerts.
Need help?
Contact Zonitel Support with the relevant details.