Chapter 2: Operation
8 Getting started
subscribed mobile number to the SIP user name is fixed. For an example see
the following table.
See your subscription information for the exact details on which mobile
number is assigned to which user name.
To connect one or more VoIP-phone or soft-phone (mobile apps, PC
software), do as follows:
1. In order to use the telephony service connect a SIP or VoIP enabled
telephone to a user port of the BDU and register it with the built-in SIP
server.
2. If a router or wireless access point is used to connect the telephone,
make sure that the required protocols for VoIP telephony. You can find a
list of these protocols at the end of this chapter.
3. For the registration on the BDU a number of network-specific
parameters are necessary, which are stored in a "SIP profile" in the
telephone. At least configure the following items:
Mapping from subscribed mobile numbers
User name Mobile number Line type Voice quality
line1 8816xxxxxxx1 PostPaid HQ
line2 8816xxxxxxx2 PostPaid HQ
line3 8816xxxxxxx3 PostPaid HQ
Network-specific parameters
Item Value Description
Profile name [arbitrary] Select a name.
User name line1, line2 or
line3
Select the user name assigned to the
mobile phone number that shall be
used
Password [leave empty] No password required
SIP server 172.16.0.1 This is the default address. If the
address does not work contact the
administrator for the correct one.
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