[Serusers] Update: SIP call to ISDN subscribe

[Manuel Goertz]

Sorry,

I left out the ACK in my signaling sequence.
The ACK arrives at the GW after the GW has sent the
DISCONNECT message to the ISDN subscriber.

Thanks
  Manuel 

UA           GW      ISDN
INVITE ->     |
 <- 100 Try     
              | TX -> SETUP
              | RX <- CALL_PROC 
              | RX <- ALERTING
 <- 183 Sess  |
              | RX <- CONNECT
              | TX -> CONNECT_ACK
 <- 200 OK    |
 Milliseconds later !
              | TX -> DISCONNECT
ACK ->        |
              | RX <- RELEASE
              | TX -> RELEASE_COMP
 <- BYE       |
200 OK ->     |


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+KOM----------------------------------------------------------------+
|Manuel Görtz                                        Merckstrasse 25|
|Darmstadt University of Technology         64283 Darmstadt, Germany|
|Multimedia Communications                   Tel: (+49) 6151 16-5175|
|Multimedia Networking & Distribution        Fax: (+49) 6151 16-6152|
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