[SIPForum-techwg] Basic Call Survey - Early Results and additions

[Peter Musgrave]

G'Day, 

 

I have had three responses so far (summarized below). This has resulted
in a two new questions. 

 

More responses are welcomed! 

 

(1)   Require Digest Authentication for REGISTER from Enterprise to SP?
(i.e. TLS is not enough)

3 yes

(2)   Require Digest Authentication for INVITE from Enterprise to SP?

3 yes

(3)   Allow reINVITE to do onhold?

3 yes (1 response would prefer UPDATE be used)

(4)   Allow a reINVITE which changes the sdp destination?

3 yes (1 response would prefer UPDATE be used)

(5)   Respond to a 302 message with a new INVITE (RFC3261 says SHOULD)?

3 yes

(6)   Ignore headers which are not understood in SIP messages or sdp?

(7)   Allow early media ?

3 yes

(8)   Allow Identity headers?

1 yes, 2 don't care

(9)   Advertise but do not require session timers?

2 yes, 1 don't care

 

New Questions

      (3b) Always offer explicit sendonly/recvonly/inactive/sendrecv but
accept c=0.0.0.0 inputs?

      (10) Require PRACK support?

 

I'll accumulate input for a few more days and then think about outlining
some call examples for basic SIPCOnnect interop.

 

Thx

 

Peter Musgrave 

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