Answers

1.Does SIP support the standard telephone features?

Ans:Yes. SIP supports, among others: 1.call forwarding unconditional, busy, ...
2.call transfer (call control spec)

3.caller ID

4.call hold

5.3-way conferences and multiparty conferencing (call control spec)

6.call return ("*69")

7.call park (with NOTIFY)

8.follow-me

9.find-me

10.call waiting

11.IVR systems

12.multiple line presences

13.call waiting

14.camp on

15.call queueing

16.automatic call distribution

17.do not disturb

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