Skip to main content
You give hyzl your contact list near the end of the campaign creation flow. It is the step after call details, voice, options, and the test call. hyzl accepts contacts as a CSV file.
No contact list yet? Click Buy Leads at the top of the contacts step. It opens our partner lead providers.

​
Buy leads

You can buy a list from a lead provider. Click Buy Leads at the top of the contacts step. The lead purchasing panel opens. hyzl partners with four providers:
  • Apollo. Click Shop Apollo to search and export verified B2B contacts.
  • A-Leads. Click Shop A-Leads to browse their catalog and buy leads directly.
  • Seamless.ai. Click Shop Seamless.ai to open their database of verified B2B contacts.
  • ZoomInfo. Click Shop ZoomInfo to search their enterprise contact database.
Every link opens in a new tab. After you buy a list, download it as a CSV. Then upload it with the steps below.
Do you want lead buying built into hyzl? Leave your email in the Help us decide section of the Buy Leads panel. We will tell you if we build it.

​
CSV format

Your CSV must have a phone number column. Every other column is optional. The extra columns improve personalization.

​
Required column

​
Multiple phone numbers

You can give fallback numbers for each contact. Use phone2, phone3, and so on. A contact can have up to 10 numbers in total. If the primary number does not connect, hyzl tries each fallback in order. It stops when it reaches the contact, or when it runs out of numbers. hyzl tracks each dial attempt separately in the campaign results. You can see which number it used, the outcome, and the recording for every attempt.

​
Upload your file

  1. Click Upload CSV in the contacts step
  2. Drag your CSV into the box, or click to browse
  3. Map your columns to the fields in the preview step
  4. Check the contact count
  5. Click Yes, import contacts
The portal previews the first few rows before import. Check that the phone numbers and names mapped correctly, then continue.

​
Remove contacts

You can remove single contacts from the list before launch. You cannot add or remove contacts after a campaign starts.

​
Do Not Call filter

Turn on the Do Not Call (DNC) filter add-on for a campaign. hyzl then checks every contact number against the US National Do Not Call Registry before it dials. The check costs $0.03 per contact. Each campaign also has a $0.50 minimum charge, which is a payment processor minimum. hyzl skips numbers that are on the registry and marks them as DNC in the results. It refunds them automatically, because they never connected. The filter runs against each campaign’s contact list at launch. Turn it on for every campaign where you want it to run. This paid registry scrub is separate from your account’s own Do Not Call list. That list is always enforced, across all campaigns and integrations, at no charge. hyzl adds a number to it automatically when someone asks not to be called again.