SIP Phone

Technical Information for KX-UT248

• Installation
• Configuration
• Configuration file
• Troubleshooting

• Operation/Features/Indication
• SIP signaling
• Compatibility Information

Installation

• General setting procedure for connecting UT1xx series to SIP server.
• How to set the auto reboot after pre-provisioning.
• Provisioning by multiple configuration files.
• Pre-Provisioning by DHCP option66.

Configuration

• How to update Firmware via WEB in LAN.
• How to set periodic download and retry download of configuration files.
• Specification of SIP Source Port.
• How to set the conference server.
• Specifications,Flow of downloading and Priority about 3 types of configuration files.
• How to decrypt the configuration files by the key of other configuration file.
• How to receive the data, only from server that can be trusted.
• The parameters which restrict access to network settings from user authority.
• Provisioning using HTTPS protocol.
• Web port setting.
• Setting method for DNS address.
• Automatic Firmware update.
• How to manage the configuration file downloading.
• TCP Connection behind NAT Router.
• Remote Access to Embedded WEB by NAT Port Forwarding.
• LLDP Specifications and Settings.

Configuration file

•  Tool to check configuration file.
• Configuration file sample.

Troubleshooting

• How to reset web settings and network settings.
• How to change login authority.

Operation/Features/Indication

• Specification of displaying caller ID.
• Call Transfer Features.
• SYSLOG from phone.

SIP signaling

• How to set "From" Header with parameter, when making anonymous call.
• How to set alpha-numeric as SIP account ID.
• How to activate the Private Extension(RFC3325 : "P-Preferred-Identity", "Privacy" header)

Compatibility Information

• Verified Headset

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