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LANCOM 1722 VoIP – LANCOM 1724 VoIP
Chapter 1: Introduction
Supplement/remove trunk numbers per line
Voice process-
Echo cancelling and de-jitter buffer for SIP connections
ing
Transparent pass-through for negotiated codecs
Interaction on codec negotiation (filter, quality, bandwdith)
WAN connection
Connection for DSL or cable modem
Integrated ADSL modem (ADSL2+ ready)
ISDN S
connection in NT mode for connecting downstream ISDN devices (ISDN telephones,
0
ISDN PBXs) to the LANCOM Router.
Switchable to TE mode.
With LCOS version 6.0 only one ISDN interface in NT mode can be used for SIP.
ISDN S
connection in TE mode for connecting a LANCOM Router to an external ISDN con-
0
nection, e.g. to an NTBA or to an upstream ISDN PBX.
Switchable to NT mode.
With LCOS version 6.0 only one ISDN interface in TE mode can be used for SIP.
Life-Line Support to ensure functional telephony during power outages or with a non-config-
ured VoIP Call Manager
Power relay to the internal ISDN port to supply power to connected devices.
Port for external modem, analogue or GSM (requires LANCOM modem adapter kit)
LAN connection
Individual Fast Ethernet LAN ports, switchable separately, e.g. as LAN switch or separate
DMZ ports, auto crossover.
USB port
USB 2.0 Host Port for future extensions (full speed: 12 Mbps)
Security functions
IPSec encryption in external software (VPN client)
5 integrated VPN tunnels for protection of network connections
IPSec encryption in hardware (optional, activation via the VPN-25-Option)
IP masquerading (NAT, PAT) to hide all workstations of the LAN behind one common public IP
address.
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