CNT offers a flexible contract which means you don’t have to sign up for long periods of time while Claro offer international plans where you can sign up for cheap calls to the US, Spain or Italy as well as a plan with low-cost calls to other Claro mobiles.
There are a whole raft of others offered by both companies, so make sure you do your research about what will suit you best before signing up. TV cable also offer a fixed line deal with free installation.
Bear in mind that many homes won’t have a ready-installed landline. Only 15% of the country is connected via a fixed line, so speak to the companies above about installation. Details can be found on their websites.