what is your driver for SIP?&nbsp; are you using a non-cisco call agent ?<br><br>7921 phones support RFC2833 when using SCCP according to:<br><a href="http://www.cisco.com/en/US/docs/voice_ip_comm/cuipph/7921g/firmware/1_1/english/release/notes/7921_11.html#wp208644">http://www.cisco.com/en/US/docs/voice_ip_comm/cuipph/7921g/firmware/1_1/english/release/notes/7921_11.html#wp208644</a><br>
<br>Justin<br><br><div class="gmail_quote">On Mon, Dec 1, 2008 at 10:13 PM, Dane Newman <span dir="ltr">&lt;<a href="mailto:dane.newman@gmail.com">dane.newman@gmail.com</a>&gt;</span> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<div><a href="http://www.cisco.com/en/US/prod/collateral/voicesw/ps6788/phones/ps379/prod_qas0900aecd80601788.html" target="_blank">http://www.cisco.com/en/US/prod/collateral/voicesw/ps6788/phones/ps379/prod_qas0900aecd80601788.html</a></div>


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<div>If you scroll down it reads </div>
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<div style="margin: 0pt 0pt 0pt 18pt; font-weight: bold; text-transform: none; text-indent: -18pt; font-style: normal; font-variant: normal; text-decoration: none;"><font face="Arial"><b>Q.</b></font> Does the Cisco Unified Wireless IP Phone 7921G support SIP?</div>


<div style="margin: 0pt 0pt 0pt 18pt; font-weight: bold; text-transform: none; text-indent: -18pt; font-style: normal; font-variant: normal; text-decoration: none;">A. No, this phone supports only the SCCP protocol. Support for SIP protocol will come later.</div>


<div style="margin: 0pt 0pt 0pt 18pt; font-weight: bold; text-transform: none; text-indent: -18pt; font-style: normal; font-variant: normal; text-decoration: none;">&nbsp;</div>
<div style="margin: 0pt 0pt 0pt 18pt; font-weight: bold; text-transform: none; text-indent: -18pt; font-style: normal; font-variant: normal; text-decoration: none;">Has later come yet?&nbsp; if so how do I upgrade the firmware to support sip?</div>


<div style="margin: 0pt 0pt 0pt 18pt; font-weight: bold; text-transform: none; text-indent: -18pt; font-style: normal; font-variant: normal; text-decoration: none;">&nbsp;</div>
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