0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| EMAIL=3 | length | email address of source ...
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
The email address is formatted according to RFC 822 [19], for
example, "John.Doe@megacorp.com". The EMAIL value is expected to
remain constant for the duration of a session.
6.4.4 PHONE: Phone number SDES item
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| PHONE=4 | length | phone number of source ...
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
The phone number should be formatted with the plus sign replacing the
international access code. For example, "+1 908 555 1212" for a
number in the United States.
Schulzrinne, et al Standards Track [Page 34]
RFC 1889 RTP January 1996
6.4.5 LOC: Geographic user location SDES item
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| LOC=5 | length | geographic location of site ...
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Depending on the application, different degrees of detail are
appropriate for this item. For conference applications, a string like
"Murray Hill, New Jersey" may be sufficient, while, for an active
badge system, strings like "Room 2A244, AT&T BL MH" might be
appropriate. The degree of detail is left to the implementation
and/or user, but format and content may be prescribed by a profile.
The LOC value is expected to remain constant for the duration of a
session, except for mobile hosts.
6.4.6 TOOL: Application or tool name SDES item
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| TOOL=6 | length | name/version of source appl. ...
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
