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synchronization), AGC (automatic gain control), Status output, Decoder controlling via voice
packet header
DHCP Server/Client
Yes, DHCP Client only
Telnet Server
Yes
Fax over Ip
T.38 compliant Group 3 Fax Relay up to 14.4kpbs and auto-switch to G.711 for Fax Passthrough, Fax Datapump V.17, V.19, V.27ter, V.29 for T.38 fax relay
QoS
Diffserve, TOS, 802.1 P/Q VLAN tagging
Transport Protocol
RTP/RTCP
DTMF Method
Flexible DTMF transmission method, user interface of In-audio, RFC2833, and/or SIP Info
IP Signaling
SIP (RFC 3261)
Provisioning
TFTP, HTTP, HTTPS, TR-069, XML
Control
TLS/SIPS , SIP over TCP/TLS
Device Management
Web interface or via secure encrypted AES or non-encrypted central configuration file for
mass deployment using Grandstream binary file or xml format. Auto/manual provisioning
system or via built-in IVR.
NAT-friendly remote software upgrade (via TFTP/HTTP/HTTPS) for deployed devices
including behind firewall/NAT. Syslog support. Full support of TR-069 management protocol
and Telnet access.
Dial Plan
Yes
Caller ID
Bellcore Type 1 & 2, ETSI, BT, NTT, and DTMF-based CID
Call Handling
Caller ID display or block, Call waiting caller ID, Call waiting/flash, Call transfer, hold,
Features
forward, 3-way conferencing, message waiting, Do-Not-Disturb (DND), call-return service
FIRMWARE VERSION 1.0.3.1
HT70X USER MANUAL
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