Draytek Vigor2100V User Manual page 101

The VoIP facilities of Vigor2100V/VG series can provide a cost-saving
alternative to having an additional fixed-line. By using the ITSP (e.g.
DrayTEL, www.draytel.org) you can also make calls to any regular phone
line too, including mobiles, as well as receive calls from anyone - the call is
carried to your phone via your internet connection so your regular phone
line remains free for other people/calls.
There are two ways for you to make a call to other Vigor VoIP router users;
by dialling their IP address directly on the phone handset or using a SIP
registrar. A SIP server on the Internet enables your router to log its current
location (IP Address) and availability so that other users can call you on
your SIP address (e.g. 98141@draytel.org)
Before you can set up the router for SIP you need to open an
account with a SIP registrar [e.g. IPTEL, DrayTEL
(www.draytel.org)].
Our Vigor2100V/VG series firstly apply efficient codecs designed to make
the best use of available bandwidth, but Vigor2100V/VG series also equip
automatic QoS assurance
with
assign high priority to voice traffic via Internet. You will always have the
required inbound and outbound bandwidth which is prioritized exclusively
for Voice traffic over Internet but you just get your data a little slower and it
is tolerable for data traffic.
VoIP
!! QoS Assurance assists to
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