7Run-time To use KNS on Windows XP, Microsoft .NET Framework 2.0 or later isrequired. If it is not installed, install it when installing ARHP-590.ARHP-590 This software controls the transceivers. Refer to the software help forthe settings and operation methods. Download the software from thedownload page, and install on the PC.http://www.kenwood.com/i/products/info/amateur/software_download.htmlVoIP software To transmit and receive audio, VoIP software is required. (See Note 1.)Router To implement KNS operations via the internet, a model on which portforwarding settings are possible using the following protocol isrequired to transmit the data signals that control the transceiver. (SeeNote 2.)Protocol: TCP; port No.: 50000 (KNS default value)Modem Not specified.LANenvironmentOther To implement KNS operations via the internet, firewall environmentsconfigured using in-house company networks cannot be used. Use adomestic network environment.Provider To implement KNS operations via the internet:・ A high-speed cable broadband environment using xDSL, FTTH, orCATV network is required. (1Mbps min. recommended.)・ A global IP address is required. (See Note 3.)・ The ability to use protocols and ports to transmit the data signalsthat control the transceiver is required.Protocol: TCPPort No.: 50000 (KNS default value)For details, contact your internet service provider.InternetenvironmentProxy Proxy servers cannot be used.Note 1: Support for selecting, installing, and operating VoIP software is not available fromKenwood Corporation.Note 2: Make sure to refer to the user manual for the broadband router to be used beforeperforming the settings.Note 3: KNS operations are possible even if the global IP address is variable, but the IPaddress may change with uncertain timing. In such cases, it is necessary to checkand change the IP address of the connected host when connected from a remotestation, which reduces user-friendliness. Consequently, using an environment inwhich the host station global IP address is fixed is recommended. Furthermore, if theglobal IP address cannot be fixed, using a dynamic DNS service enables operationsin the same way as an environment with a fixed global IP address.