Voicemail retrieval without using iPhone

CD180001

Does anyone know how to retrieve voice mails from iPhone 5s with another phone?  I am out of the country and am not using my iPhone but know I am getting voicemail and have access to a US land line that I could use but have no clue how it works on the iPhone 5s

Snn5

To check your voice mailbox outside the Verizon Wireless network or from any phone:

1. Call your 10-digit mobile phone number.
2. Tap # to interrupt your greeting.
3. Enter your password and tap #.

Voice Mail FAQs | Verizon Wireless

In this case you may have to dial the country code.