OBS_VALUE: SUTEL, through resolution RCS-253-2014, mandated the number portability in fixed phones.  ICE brought an action on 20 October 2016  (file number 16-000936-0007-CO) challenging the constitutionality of such resolution. This case was resolved by the Constitutional Chamber on 29/01/2020. The Chamber dismissed the case (link to the decision: https://nexuspj.poder-judicial.go.cr/document/sen-1-0007-933140). However, another claim was presented before the Administrative Courts. The effects of the SUTEL resolution are therefore suspended until the Administrative's Court ruling.