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[S1] Instant
Messaging is a text-based application, thus by definition it can
not be implemented
by SIP, which was designed to support multimedia sessions -
False
True
[S2] There is no real expectation from SIP to support phone
calls to/from circuit switched phones, as SIPwas designed to replace the circuit switched telephony
altogether -
False True
[S3] QoS
is a big issue for RTP. However it is not a big issue for SIP
itself, since
SIP has built-in QoS support
- FalseTrue
[S4] Not
only SIP call setup might use IP multicast techniques, but the RTP
session that follows
might be multicast as well
-False True
[S5] SDP is a protocol, which is used to
route SIP messages -
False
True
[S6] SIP
proxies must be able to play (also) the role of IP routers, so
they can forward the SIPmessages to one another - False
True
[S7] SIP responses do not go via SIP
redirect servers -
False
True
[S8] SIP end-points may
return answer response (200 OK) right away, skipping the 180
ringing response and other possible 1xx responses altogether
-
False
True
[S9] If the SIP phone of the calling party
knows the IP address of the SIP phone of the called party it may
send it directly SIP invitations without going through a proxy
(unless the Service provider's policy forbids that)
- False
True
[S10] It is better to SIP red wine with
white meat rather than with red meat
- False
True