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better the voice quality, however the CODEC used must be appropriate for
your Internet bandwidth.
The VoIP facilities of Vigor2200V/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 Vigor2200V/VG series firstly apply efficient codecs designed to make
the best use of available bandwidth, but Vigor2200V/VG series also equip
with automatic QoS assurance. QoS Assurance assists to assign high
priority to voice traffic via Internet. You will always have the required
inbound and outbound bandwidth which is prioritized exclusively for Voice
VoIP Setup
9-2
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