Firmware Version 1.0.17.5; Firmware Version 1.0.15.4; Firmware Version 1.0.13.7 - Grandstream Networks HT818 Administration Manual

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Added support to set Ring Timeout to 0 for unlimited ring timeout. [Ring Timeout]
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Added OI_BR to special feature. [Special Feature]
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Added New Zealand Standard for Pulse Dialing Standard. [Pulse Dialing Standard]
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Increased "SIP TLS Certificate" and "SIP TLS Private Key" supported maximum length from 2048
to 4096.[SIP TLS Certificate][SIP TLS Private Key]

Firmware Version 1.0.17.5

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Added support for TLS version configuration. [TLS Version]
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Updated "São Paulo" time zone to UTC-3. [Time Zone]

Firmware Version 1.0.15.4

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Added more choices to feature "Disable Weak TLS Ciphers". [Disable Weak TLS Cipher Suites]
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Added feature "Syslog Protocol". [Syslog Protocol]
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Added support for "Distinctive Call Waiting Tone". [Distinctive Call Waiting Tone]
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Added support for "Call Waiting Tones". [Call Waiting Tones]
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Added support for DHCP option 67. [Configuration File Download]
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Added support to allow CID name fields for ports that are part of the active hunting group to take
effect. [Hunting Group]
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Added support for GDMS. [ACS URL]
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Added Russian language to Web UI and IVR. [Language]

Firmware Version 1.0.13.7

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Added ability to support provisioning server path containing the server authentication credentials
for the DHCP option 66. [Allow DHCP Option 66 or 160 to Override Server]
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Added support to send SNMP trap to 3 different servers. [SNMP Trap IP Address]
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Added feature "Call Features Settings" [Call Features Settings]
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Added feature "Use SIP User Agent". [SIP User-Agent]
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Updated "Use SIP User Agent Header" to "SIP User Agent Postfix". [SIP User-Agent Postfix]
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Added feature "Disable Reminder Ring for DND". [Disable Reminder Ring for DND]
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Added feature "CDR File Option". [CDR File Option]
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Added feature "SIP File Option". [SIP File Option]
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Added feature "Disable Weak TLS Cipher Suites". [Disable Weak TLS Cipher Suites]
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Added feature "Pulse Dialing Standard". [Pulse Dialing Standard]
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Added feature "Callee Flash to 3WC". [Callee Flash to 3WC]
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Added feature "RFC2833 Count". [RFC2833 Events Count] [RFC2833 End Events Count]
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Added feature "Replace Beginning '+' with 00 in Caller ID". [Replace Beginning '+' with 00 in Caller
ID]
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Added feature "Reset Call Features". [Reset Call Features]
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Added support to view, download, and delete the call history through device Web UI. [CDR File]
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Added support to store SIP file locally. [SIP File]
HT818 Administration Guide
Version 1.0.27.2
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