Nagra Seven Operating Instructions Manual page 77

STUN Server: STUN server name (Example: stunserver.org which is an existing stun server). A port
number may be added by the server separated by a colon.
Jitter buffer max:
Allows the user to set the maximum buffer length for the received audio packets to
be shuffled to be in the correct order. Typically, this value will be between 200 and
300 ms. The actual duration of the buffering corresponds to the jitter of the received
packets, whereas this setting limits it to a maximum value only.
Drift comp: Selection of ON/OFF for automatic drift compensation which synchronises the clock
of the Nagra
between the two. This helps jitter buffers on both sides to be stable.
RTP port range: Default 20000 to 65000 – range of allowed audio communication ports
SIP Direct communication example.
The SERVER fiel dis used for inserting YOUR SIP server, the one usually used for SIP communication.
If somebody tries to call they will contact you via
If YOU want to call, then you user
contacts of the Nagra).
The advantage of a SIP server is that the correspondent is logged in (each time he goes on-line) and
is therefore sure to communicate with his own IP address rather than changing from each location
(From home, work etc). Thanks to the SIP server you always call with the same address
(myname@my_server_sip.com).
Now, if you know your correspondent is at home and his IP address is 178.143.56.92 (Normally
supplied by the SIP server) then you can call this IP address directly by putting
hisname@178.143.56.92
the SIP server.
If your correspondent knows you will call direct, he doesn't need to log-on to his SIP server,
(although it won't hurt) and can leave the SERVER field empty (et he can only be contacted by SIP
direct). The identifier "myname" in this case is supplied by the user in the "USERNAME" field which
in this case can be changed as desired as it is not linked to the SIP server.
Chapter IV
to the clock of the remote party and compensates for the drift
Seven
theirname@their_server_sip.com
(which can also be stored in the contacts) This is SIP direct rather than via
myname@my_server_sip.com
(That you can store in the
76 September 2014