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Case studies

Real projects, real phones

Client names are kept private. I’m happy to share more detail on a call.

Home care agency · Healthcare · Illinois

An AI receptionist and A2P registration for a home care agency

Problem: Calls from families and caregivers went to voicemail after hours, and the agency had no registered way to text clients.
What I built: A Twilio number with call forwarding, full A2P 10DLC brand and campaign registration, and a Retell AI receptionist that answers, collects the caller’s details and routes urgent calls.
Result: An approved A2P campaign on the agency’s business line, and an AI receptionist built and tested end to end, ready for go-live.

TwilioA2P 10DLCRetell AI

How it works diagram: An AI receptionist and A2P registration for a home care agency

Car wash chain · Customer feedback

An SMS survey number and A2P rejection fixes for a car wash chain

Problem: Post-visit surveys sent through Qualtrics weren’t reaching customers, and the A2P campaign kept getting rejected.
What I built: Diagnosed the rejection codes (30907 and 30886), rewrote the campaign description and opt-in details to match the website, and set up the dedicated survey number connected to Qualtrics.
Result: Campaign resubmitted with every flagged issue fixed, and survey texts sending again.

TwilioQualtricsA2P fixes

How it works diagram: An SMS survey number and A2P rejection fixes for a car wash chain

SaaS · Google reviews over SMS

An A2P campaign for a Google-review SMS tool

Problem: A review-collection product that runs entirely on text messages needed a campaign carriers would approve.
What I built: Mapped how customers text in and receive a review link into a campaign description, consent language and sample messages that match how the product works.
Result: A2P campaign registered so the product can send review links to customers.

A2P 10DLCCampaign writingSaaS

How it works diagram: An A2P campaign for a Google-review SMS tool

Business phone line · UK & Thailand

Sequential call forwarding with voicemail by text

Problem: A business with an 0800 number needed calls to reach a person in the UK first, then a colleague in Thailand, and never end in a dead ring.
What I built: A Twilio Studio flow that rings the first number, checks whether the call was answered, then rings the second number abroad. If neither picks up, it plays a short message, records a voicemail and sends the recording link by text. I also built the same logic as Twilio Functions (sequential dial, voicemail and voicemail SMS).
Result: Every call either reaches someone or ends in a voicemail, with the recording link arriving by text.

Twilio StudioTwilio FunctionsVoice

How it works diagram: Sequential call forwarding with voicemail by text

Twilio Studio flow: first number, second number, then voicemail and text (names and numbers blurred)

The same logic as a deployed Twilio Function

LizzyVerse product · Appointment businesses

My appointment reminder automation (n8n + Twilio)

Problem: Small businesses lose money to no-shows and missed calls, and most can’t afford a full booking platform just for reminders.
What I built: Three connected n8n workflows. Intake logs each new booking to Google Sheets and works out when reminders are due. A dispatcher runs every 15 minutes and sends due reminders through Twilio. A reply handler reads the client’s answer, updates the appointment and alerts the owner on cancellations or reschedules. A missed-call text-back workflow texts anyone whose call wasn’t answered.
Result: A setup I can install for a new business in days, with reminders and replies running without anyone touching them.

n8nTwilioGoogle Sheets

How it works diagram: My appointment reminder automation (n8n + Twilio)

Workflow 1 · Intake: new booking → reminder times → Google Sheets

Workflow 2 · Dispatcher: every 15 minutes, sends due reminders through Twilio

Workflow 3 · Reply handler: reads the reply, updates the booking, alerts the owner

Missed-call text-back: texts callers who didn’t get through

Proof of work

Real work across platforms

Screenshots from client accounts on Twilio, GoHighLevel, RingCentral, Grasshopper, Dialpad and The Campaign Registry. Business names, phone numbers, emails and account IDs are blurred for privacy. Click any image to see it full size.

Twilio

Twilio: A2P campaign verified (Low Volume Mixed) — A2P campaign verified (Low Volume Mixed)

Three campaigns verified on one brand, including two-factor authentication

Standard brand registered · trust score 59 · 40,000 T-Mobile daily limit

Standard brand registered for a medical practice

Standard brand registered in a client subaccount

Standard brand registered · trust score 44

Sole proprietor brand registered

Low Volume Standard brand registered

Campaign verified for that brand

GoHighLevel

Brand and campaign approved, A2P verified

Restaurant account: brand and campaign approved

GoHighLevel: Local numbers A2P verified and toll-free numbers verified — Local numbers A2P verified and toll-free numbers verified

Solar company: A2P brand and campaign approved, plus SHAKEN/STIR caller ID approved

Energy company: A2P brand and campaign approved, plus SHAKEN/STIR caller ID approved

GoHighLevel: Review request workflow that sends by SMS or email based on each contact’s consent — Review request workflow that sends by SMS or email based on each contact’s consent

RingCentral, Grasshopper, Dialpad & TCR

Dialpad: real estate brand registered

RingCentral, Grasshopper, Dialpad & TCR: RingCentral: SMS campaign approved with 47 numbers assigned — RingCentral: SMS campaign approved with 47 numbers assigned

Grasshopper: home care agency brand verified and campaign approved by carrier

RingCentral, Grasshopper, Dialpad & TCR: TCR CSP portal: campaign active for a family services provider — TCR CSP portal: campaign active for a family services provider

RingCentral, Grasshopper, Dialpad & TCR: RingCentral: main greeting key-press menu routed to staff extensions — RingCentral: main greeting key-press menu routed to staff extensions

Opt-in forms & voice

Opt-in forms & voice: SMS opt-in form with consent wording, STOP/HELP and policy links — SMS opt-in form with consent wording, STOP/HELP and policy links

Opt-in forms & voice: SIP domain set up for a clinic in the US region — SIP domain set up for a clinic in the US region

Opt-in forms & voice: SIP domain set up for the same clinic in the Australia region — SIP domain set up for the same clinic in the Australia region

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