I want to use sipXphone as a UAC that supports early media.

The INVITE sent out by sipXphone does not support early media (PRACK). Allow
header (PRACK) or Supported header (tag 100rel) do not contain the required
data.

e.g. of an INV sent by sipXphone
Allow: INVITE, ACK, CANCEL, BYE, REFER, OPTIONS, NOTIFY, REGISTER, SUBSCRIBE
Supported: sip-cc, sip-cc-01, timer, replaces

It should be of the form
Allow: NVITE, ACK, CANCEL, BYE, REFER, OPTIONS, NOTIFY, REGISTER, SUBSCRIBE,
PRACK
Supported: sip-cc, sip-cc-01, timer, replaces, 100rel

Can somebody please send me the config changes that need to be made for
sipXphone to support PRACK (Early Media).

Thanks,
Anthony.


http://sipx-wiki.calivia.com/index.php/SipXphone_Introduction
Thorough Implementation of SIP
*  Early media (SDP in 180/183)
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