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About

CallBack HVAC helps HVAC businesses follow up after supported missed calls. On a configured call path, an unanswered caller can press 1 to request one service text from an approved provider number. The owner reviews replies, calls customers back, and records lead outcomes. Delivery timing and booked work are not guaranteed; this is not a staffed answering service. The software is $149/month after a 14-day no-card trial starting after email confirmation. The clock runs during setup and carrier review. Customer use requires an approved texting number, registration, compatible routing, caller consent, and a successful call-and-text test. Provider number, registration, voice, messaging, and carrier fees are separate, even during the trial. Twilio is standard. Confirm Telnyx or Plivo availability before choosing either. The dashboard supports one reply per incoming customer message and CSV export; it does not include CRM sync or dispatch. AI CSR is a separately reviewed pilot.

About

With innovative mobile services offered to carriers in 46 countries around the world, InstaVoice has been transforming the voice landscape. The InstaVoice app is a birth-child of creativity, knowledge and experience, from the inventors of Voice SMS, built on the premise of providing a sturdy and reliable voicemail application for consumers around the world. Listen, reply to, and manage unlimited voicemails for all your linked numbers in a unique chat-like user interface. Say good riddance to ‘Your-voicemail-is-full’ messages! With unlimited storage, you can access all your voicemail messages from the past - even if you switch carriers. Get free Missed Call Alerts for all your linked numbers, even when if your phone is switched off or unreachable. Your missed calls appear in the “Missed Calls” tab and you can call back or respond with a voice or text message, directly from the app.

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Platforms Supported

Windows Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Supported
iPad Supported
Android Supported
Chromebook Not Supported

Audience

HVAC companies, owner-operators, small HVAC crews, and multi-crew HVAC operations in the United States

Audience

Businesses looking for a voicemail and missed call management solution

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

API

Offers API Not Supported

API

Offers API Not Supported

Screenshots and Videos

Screenshots and Videos

Pricing

$149/month
Core software: $149/month after a 14-day no-card trial starting after email confirmation. The trial runs during provider setup and carrier review. Customer use requires a paid provider account, approved texting number, registration, compatible routing, consent and a successful call-and-text test. Provider number, registration/campaign, call, text and carrier fees are separate, including during the software trial. Twilio is standard; confirm Telnyx or Plivo availability before choosing either. AI CSR pilots are separate.
Free Version Not Supported
Free Trial Supported

Pricing

Free
Free Version Supported
Free Trial Not Supported

Reviews/Ratings

Overall 5.0 / 5
ease 5.0 / 5
features 5.0 / 5
design 5.0 / 5
support 5.0 / 5

Reviews/Ratings

Overall 1.0 / 5
ease 1.7 / 5
features 2.0 / 5
design 1.7 / 5
support 1.0 / 5

Pros & Cons from Real Users

Pros

  • I tested the CallBack HVAC workflow as a beta tester. The missed-call text-back idea was easy to understand, and I can see how it would help an HVAC business follow up faster when calls are missed. The setup and dashboard were clear from what I reviewed.

Cons

  • I did not identify any significant drawbacks during testing. However, because I reviewed the workflow as a beta tester, I was not able to evaluate long-term performance, customer response rates, or how the system handles unusual situations. Additional real-world usage data would help demonstrate its overall effectiveness.

Pros & Cons from Real Users

Pros

  • Initially it worked smoothly and was easy enough to save and review voicemail. Pleasant interface, seemed very apt to start.
  • Nothing to like. You can not deactivate the Visual voicemail and they do not respond to your questions or messages whatsoever.
  • It was good when it works but not knowing my password and asking them to sent my a code their will not send it to me and that is highly rude.

Cons

  • Went offline twice, 1st time customer service took weeks to respond, 2nd time no answer to 3 inquiries over 2 mos and no explanations. Customer service really is nonexistent. And it was inconsistent about playing my greeting, and about notifying me of missed calls, even when it was working.
  • It's impossible to deactivate. And they do not respond at any messages.
  • Tried to contact them now. Trying to get my voicemail to work is a pain in a neck and people cannot contact me if they're gonna call and talk to me and I just get phone numbers and don't know who the people are if I don't answer the phone at the time.

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Company Information

CallBack HVAC
Founded: 2026
United States
callbackhvac.com

Company Information

InstaVoice
instavoice.com

Alternatives

Alternatives

Easy Voicemail

Easy Voicemail

Sudhan Technology Solutions
Ringback

Ringback

0xpi
VoMail Video Voicemail

VoMail Video Voicemail

Sudhan Technology
Frontier Voicemail Viewer

Frontier Voicemail Viewer

Frontier Communications
Ringbrook

Ringbrook

Reservation Destination LLC

Categories

HVAC Supported
SMS Marketing Supported

Categories

Telephony Supported
Voicemail Supported

HVAC Features

Billing & Invoicing Not Supported
Customer Database Supported
Dispatch Management Not Supported
Inventory Control Not Supported
Job Management Not Supported
Maintenance Scheduling Not Supported
Mobile Access Not Supported
Quotes / Estimates Not Supported
Routing Not Supported
Scheduling Not Supported
Service History Tracking Not Supported
Technician Management Not Supported
Work Order Management Not Supported

SMS Marketing Features

2-Way Messaging Supported
Artificial Intelligence Not Supported
Contact Management Supported
Mass Texting Not Supported
Message Personalization Supported
MMS Not Supported
Mobile Coupons Not Supported
Mobile Keywords Not Supported
Polls / Voting Not Supported
Reporting/Analytics Supported
Scheduled Messaging Not Supported
Shortcodes Not Supported
Text-to-Win Not Supported

Integrations

Twilio Supported

Integrations

Twilio Not Supported
Claim CallBack HVAC and update features and information
Claim CallBack HVAC and update features and information
Claim InstaVoice and update features and information
Claim InstaVoice and update features and information