<div>We are running 2.1.1 with 3 expansion modules. Presence in turned on in sip.cfg, hints are set up on the extensions and buddy watch is enabled on about 40 extensions mapped to the expansion modules. We have 3 paging groups: "Building A" with 20 phones, "Building B" with 20 phones and "Both with all 40 phones. When Building A or B is paged separately, the 601 handles it although the sidecar leds don't seem to keep up in real time. When both buildings are paged, all three expansion modules and the phone crash and reboot.
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<div>We are paging by:</div>
<div><font size="2">exten => 560,1,SIPAddHeader(Alert-Info: Ring Answer)</font></div>
<div><font size="2"><font size="2">Sip.cfg -> <RING_ANSWER se.rt.4.name="Ring Answer" se.rt.4.type="ring-answer" se.rt.4.timeout="250" se.rt.4.ringer="2" se.rt.4.callWait="6"
se.rt.4.mod="1"/></font></font></div>
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<div><font size="2"><font size="2">Is there a limitation I'm not aware of regarding presence on the phone or is this a bug?</font></font></div>