2 Lines, 2 Voicemail, 2 Ringtones, 1 Phone

Hi a_mags,

A ringtone isn't able to be set up for each line of service, but you can set up a different ringtone for different contacts you may have: Use tones and ringtones with your iPhone or iPad - Apple Support

"Set a ringtone or text tone for a contact

1. Open the Contacts app and tap a person's name.
2. In the upper-right corner of the person's contact card, tap Edit.
3. Tap Ringtone or Text Tone, then choose a new sound."

Setting up voicemail will depend on the provisioning from your wireless carrier. Reach out to your wireless carrier for assistance with setting up the voicemail if the below steps don't work as expected: Check your voicemail on iPhone - Apple Support

"Set up voicemail

The first time you tap Voicemail, you’re asked to create a voicemail password and record your voicemail greeting.

1. Tap Voicemail, then tap Set Up Now.
2. Create a voicemail password.
3. Choose a greeting—Default or Custom; if you choose Custom, you can record a new greeting."

Kind regards.

Hi a_mags,

To set up settings when using dual lines, follow Using Dual SIM with an eSIM. This article includes steps for:

1. How can you use Dual SIM?
2. What you need
3. Set up another cellular plan on your iPhone
4. Use two phone numbers for calls, messages, and data
5. Send messages with iMessage and SMS/MMS
6. Learn about Dual SIM status icons
7. Change your cellular data number
8. Manage cellular settings

Also, check out this YouTube video from Apple Support on this topic: How to use Dual SIM on your iPhone

Take care.

a_mags,

You are very welcome. Let us know if you have additional questions.

Cheers.