This page covers the automatic follow-ups your AI sends right after a call. You may want to work hot leads and booked meetings yourself. You can send pre-written texts, emails, and calls from your own phone. That is the Follow-ups feed in the hyzl mobile app.
SMS follow-ups
When you turn it on, the AI offers to send an SMS during the call. If the contact consents, the AI sends the message after the call ends.Consent required before any text
Every SMS follow-up is consent-gated. The AI must hear the contact agree to receive a text on the call before any message is sent. The Telephone Consumer Protection Act (TCPA) requires this. hyzl cannot send an SMS to a contact who did not consent. If the contact answers and declines (or the call goes to voicemail / fails), no SMS is sent.SMS templates
SMS messages are sent from one of five pre-built templates. You must choose a template. There is no free-text SMS option. Each template’s wording is fixed for compliance reasons; you control its behavior by filling in the template’s variable slots.
When the SMS sends, the backend swaps your provided content into the template. You do not write the surrounding sentence.
Configuration
The Sender Name and Meeting Link are per-campaign overrides. They only apply to this campaign and do not change your account-wide defaults.
Number confirmation
Before ending every call, the AI asks the contact which number to send the SMS to. It reads the number back grouped naturally, then waits for explicit confirmation. If the contact wants to use the called number, the AI confirms that and continues. If the AI cannot determine or confirm a number, it flags the SMS destination for manual review. The flag appears in the call results, and hyzl sends no message automatically. You can set the destination and send the SMS manually from the call detail panel after the call ends.Missed call SMS
This only applies to Revenue Recovery Stripe campaigns, not outbound cold-calling campaigns. On a Stripe recovery campaign, a customer’s subscription is sometimes still active when they miss the call. This happens, for example, when their cancellation takes effect at the end of the billing period. A normal Checkout link is not safe to send in that case. It would create a second, concurrent subscription and double-bill the customer. Instead, the customer gets a one-tap link that applies the discount straight to their existing subscription. They tap the link, land on a co-branded confirm page showing the offer, and tap Keep my plan. hyzl applies the discount to their current subscription and reverses the scheduled cancellation automatically. hyzl creates no new subscription, and there is no charge that day. The discount lands on their next renewal. The text only sends when there is a real discount to name. A campaign with no active offer, or a 0% discount, sends nothing. Carrier opt-outs are honored: a contact who has replied STOP is never texted. This message differs from two others:- The answered-call SMS above. That one requires the contact’s live consent during the call.
- The text from a RevenueCat recovery campaign. That one sends its own coded offer text with an App Store redemption link.
Email follow-ups
When you turn it on, the AI sends an email to the contact after the call.Requirements
Email follow-ups require a connected email account. Turn email follow-ups on in the campaign settings. hyzl then prompts you to connect your Gmail or Outlook account from that step.Configuration
You configure both subject and body per campaign, so you can run multiple campaigns simultaneously with different copy.
Consent-gated sending
Standard email follow-ups are consent-gated. hyzl sends them only to contacts who answered and explicitly agreed during the call to receive an email. You must also turn on “Ask for email” for the campaign.Missed call emails
You can configure a separate email template that fires for contacts who did not answer. This is useful for re-engagement.
Missed call emails fire without consent gating, because there was no live conversation to capture consent from. They go to every contact whose call status is Missed, provided the contact has an email on file. Use this email to acknowledge the attempt and invite the contact to respond at a better time.
Retry missed calls
When a contact does not answer, you can have the AI automatically call back. It does not give up after one attempt. Turn Missed Call Retry on in the campaign settings. The first call is always immediate. Retries are the follow-up attempts that get spaced out afterward.Configuration
Two more constraints apply automatically:
- Retries only dial within a 9:00 AM to 1:00 PM window in the contact’s local time.
- At most 2 retry calls land per day.
Mornings (around 10 to 11 AM local) get the best pickup rates. Retries land inside your call window. If a retry comes due after today’s window has already passed, it rolls to the next morning’s window. It never dials at a bad hour.hyzl anchors the window to each contact’s own local time. So a campaign spanning multiple time zones still reaches everyone in their morning.
When follow-ups are sent
- hyzl sends SMS and email follow-ups within seconds of the call ending
- hyzl sends one follow-up per contact only, regardless of the number of call attempts
- If a contact is on your Do Not Call list, hyzl suppresses follow-ups automatically