# File auth.rb, line 26
    def get_msisdn()

      logHeaders()
      msisdn=request.env["HTTP_X_MSISDN"]
      msisdn=request.env["HTTP_X_NOKIA_MSISDN"] if msisdn ==nil
      msisdn=request.env["HTTP_MSISDN"] if msisdn ==nil

      if msisdn != nil 
        logger.debug "msisdn = #{msisdn}"
        if msisdn.length == 11
          msisdn=msisdn[1..-1]  
        end
        if msisdn.length == 10
          msisdn='91' + msisdn
        end
      end

      if(msisdn!=nil)
        if(msisdn.length == 12)
          return msisdn
        end
      end
      return ''

    end