Some of the best landline phone plans include those from Vonage and Voipo, notes Wirefly.com. These companies have low rates averaging about $10 a month as of September 2015 and are available for landline use around the country.
Vonage is a popular choice that includes more than 25 user-friendly features. The company allows unlimited calling to places such as Puerto Rico, Canada and anywhere in the United States. The rate starts at $9.99 a month as of 2015, states Wirefly.com.
Voipo is less expensive than Vonage, being priced at slightly more than six dollars per month. The plan includes unlimited calling to anywhere in the United States and Canada, but not Puerto Rico.