# File lib/sms_on_rails/service_providers/base.rb, line 198
         def get_service_provider(provider)
           case provider.class.to_s
            when 'Fixnum'           then provider_by_id(provider)
            when 'String'           then (provider.to_i > 0 ? provider_by_id(provider) : provider_by_name(provider))
            when 'Symbol'           then provider_by_name(provider)
            when 'NilClass'         then nil
            else
              provider
            end
         end