http://www.DBL.com FXS+FXO Gateway Series
45
1. Product Introduction
1.1 General Information
HTM series VoIP gateways are the performance Gateway of FXO plus FXS, which developed by
Technology Co., Ltd. HTM Series VoIP gateways built-in H.323 and SIP protocols. The lines can
be configured into different numbers or used for Trunk Gateway. Highly reliable line detection
prevents the line hanging death in the largest tent. It can forward outside Caller ID Number under
the SIP protocol, which is an important function of PBX application. Super Echo Cancellation
Algorithm and Balanced Circuit make line echo minimum. Low price, Stable and performance are
pronoun of the HTM series products
，
it is the first choice of PXS Manufacturers, Call Center and
System Integrators.
HTM series mainly include HTM-112, HTM-222, and HTM-442.
1.2 Protocol
¾
TCP/IP V4 (IP V6 auto adapt)
¾
ITU-T H.323 V4 Standard
¾
H.2250 V4 Standard
¾
H.245 V7 Standard
¾
H.235 Standard
（
MD5
，
HMAC-SHA1
）
¾
ITU-T G.711 Alaw/Ulaw, G.729A, G.729AB, and G.723.1 Voice Codec
¾
RFC1889 Real Time Data Transmission
¾
Proprietary Firewall-Pass-Through Technology
¾
SIP V2.0 Standard
¾
Simple Traversal of UDP over NAT (STUN)
¾
Web-base Management
¾
PPP over Ethernet (PPPOE)
¾
PPP Authentication Protocol (PAP)
¾
Internet Control Message Protocol (ICMP)
¾
TFTP Client
¾
Hyper Text Transfer Protocol (HTTP)
¾
Dynamic Host Configuration Protocol (DHCP)
¾
Domain Name System (DNS)
¾
User account authentication using MD5
¾
Out-band DTMF Relay: RFC 2833 and SIP Info
Summary of Contents for HTM series
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Page 13: ...http www DBL com FXS FXO Gateway Series 45 State of HTM 112 State of HTM 222 ...
Page 27: ...http www DBL com FXS FXO Gateway Series 45 HTM 112 HTM 222 ...
Page 31: ...http www DBL com FXS FXO Gateway Series 45 HTM 222 HTM 442 ...
