Today:

1
Today

• Time slot booking for project demo
• Quiz answers

2
Complaints about grades

• No complaint today
• Take time to digest the answers / grades
• Time slot for complaint
• - Tuesday, April 12, 15 h 17h00
• - My office CB-410-11, 1425 Rene Levesque
  Boulevard

3
Time slot

• April 12
• April 14

4
Quiz 1

• .

A A-
B B-
C C- (25-23)
(22-20) (19-17)
(16-13) (12-10)
(9-7)
5 7 4
3
1 0
5
Quiz 2

• .

A A A- B
B B-
C (35-33) (32-31) (30-28) (27-25)
(24-22) (21-19) 18
and below
6 3 3 2
1 3

6
Question 1 -
Call transfert and its two forms See course
notes Grading scheme 1 point definition 1 point
blind transfer 1 point unblind transfer


7
Question 1 -
Parameter may be B or/and C Method of the
servlet infrastructure doInvite () Grading
scheme - 0.5 if doInvite () is not identified


8
Question 1 -

• Several possibilities
• Grading scheme
• 0 if there is a misunderstanding of the basic
  concepts
• -2 if B and C are not connected at the end
• -2 if A and B remain connected at the end

9
Question 2 -
Parlay business model and equivalent in TINA-C
See course notes Dial in conference See course
notes


10
Question 2 -
Pretty straightforward sequence diagram Grading
scheme 0 misunderstanding of basic concepts (e.g.
gateway sending INVITE to participants) - 2 bad
sequences


11
Question 2 -
CPL constructs See course notes


12
Question 3 -
Equivalence of Web service roles in Parlay
business model Web services is from the Internet
world No concept of subscription / retailer /
third party providers Web services requestor
client application Web service broker Framework
operator Web service provider No actual mapping
because the owner of the services offered in
Parlay (I.e network operator does not appear
explicitely in the model)


13
Question 3 -
Fundamentals principles of Web services See
course notes


14
Question 3 -
1 way of doing it Grading scheme 0 for
misunderstanding of basic concepts (e.g. a Parlay
request sent to user A who understand only
SIP) -1 for bad sequencing (ACK cannot be sent
before Attachmedia is received See course notes
and journal paper)


15
Question 4 -
See course notes