AP-IP300 IP Phone Installation Guide Version 1.0AddPac Technology Proprietary & Documentation 104Network & Call – Additional Service – Service PortThis menu activates or deactivates FTP, TELNET, TFTP, SNMP protocol service of AP-IP300.You can use FTP to access to AP-IP300 from a remote location and Telnet is used for changing allkinds of information and monitoring and SNMP is also used to access to AP-IP300 from a remotelocation.(Figure 4-55) Service Port Menu Screen