Cortelco C56 user manual Stun Config

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Registration Failure Retry Time

Registration failure retry time – If registration fails, the phone will attempt to register again after registration failure retry time.

This will affect all lines

5.3.3.2STUN Config

STUN support is configured in this page.

STUN – Simple Traversal of UDP through NAT – A STUN server allows a phone in a private network to know its public IP and port as well as the type of NAT being used. The phone can then use this information to register itself to a SIP server so that it can make and receive calls while in a private network.

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Contents Cortelco Safety Notices Table of Contents Appendix Keypad Box ContentsThank you Sysinfo Input/Output Ports Connecting the phonePower switch Input 5V AC, 1A PPPoE Mode Network SettingsStatic IP Mode Call Hold Making a callAnswering a call Call transfer Call Waiting3-way conference call Dialing PauseMWIMessage Waiting Indication Introduction of configurationRedial / Unredial Click to dialPassword Configuration Setting via web browserField Name Explanation Configuration via WEBBasic Status Wizard Static IP Quick SIP Settings Call Log Network WAN ConfigWAN Settings Qos & Vlan Config Page Field Name Explanation TIME&DATE Service PortDaylight Saving Time Settings Manual Time Settings Voip SIP ConfigurationField Name Explanation Advanced SIP Settings Codecs SettingsSipinfo Auto SIP Global Settings Stun Config Dial Peer SIP Line Using StunField Name Explanation Web Interface Explanation Example Dial Peer ExamplesPhone Audio Feature Field Name Explanation Page Dial Plan Dial Plan Special Characters Contact WEB Dial Blacklist SettingsFunction Key Export Contact FileMaintenance Auto Provision Auto Provision Setting Syslog Syslog Settings Config SettingLevel Name Description Web CaptureField Name UpdateWeb Update Access Configuration AccessSecurity WEB Filter RebootUser Management WEB FilterFirewall Firewall ConfigurationProcedure Settings via Phone’s KeyboardLogout Phone menuHardware SpecificationVoice Features  DNS Maintenance and management Network FeaturesDigit-character map table