Last updated: November 24, 2022 A Softswitch is a long-term investment that requires a certain level of commitment from VoIP service providers. This dedication is understandable and generally beneficial. Except when carriers exceed the advantages of their initial solution. A move to a different Softswitch may be an option for them. The pros of making the choice to migrate to a Class 4 Softswitch, in order to get a more powerful and flexible platform far outweigh the cons of staying on an old Softswitch.