: (Endpoints) (Connections).
n (Endpoints) - , , / . , (POTS). , , .
n (Connections) - , RTP/IP. , .
n IP- .
MGCP
n EP1, EP2 (Endpoints) ;
n 1,2 (Connections) .
:
N ;
N
:
n
( )( )( )( )
- : RCX ( );
- 1 999999999 : + ( 1204)
, . RFC 821 . ts/[email protected] ( 1);
MGCP 0.1
:
RCX 1204 ts/[email protected] MGCP 0.1
N
:
( ): ( )
MGCP . MGCP .
:
( )_( )_ (, - )(CRLF).
(SP), / (CRLF).
:
n ( 000 099) - ,
n 1 ( 100 199) - ; ,
n 2 (200 299) - ,
n 4 ( 400 499) - - ,
n 5 (500 599) - - ,
n 8 ( 800 899) - .
MGCP SDP (Session Description Protocol), :
n v=0;
n IP- IP-, RTP.
MGCP, , , - , ;
|
|
|
n m ( - ), , RTP ( MGCP) ( ), RTP ;
n :
sendonly - ,
ecvonly - ,
sendrecv - ,
inactive - , ,
loopback - ,
conttest - .
n .
