<html><head><meta http-equiv="Content-Type" content="text/html charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div class="">Hi all. When CUCM sends a SIP Invite to shared lines on SIP phones the user portion contains some sort of (what appears to b) a randomly calculated alpha-numeric string. Is there any information or documentation available on how Cisco actually calculates what this string will be? </div><div class=""><br class=""></div><div class="">Here is an example of a SIP Invite going to two SIP phones sharing the same phone number</div><div class=""><br class=""></div><div class="" style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;"><div class=""><div class=""><div class=""><div class="" style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;"><div class=""><div class=""><div class="" style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;"><div class="">INVITE <a href="sip:8cc951b7-86b6-0c74-1e4d-c0108c268dc2@10.232.50.81:49422;transport=tcp" class="">sip:8cc951b7-86b6-0c74-1e4d-c0108c268dc2@10.232.50.81:49422;transport=tcp</a> SIP/2.0</div><div class="">INVITE <a href="sip:8cc951b7-86b6-0c74-1e4d-c0108c268dc2@10.232.50.91:51945;transport=tcp" class="">sip:8cc951b7-86b6-0c74-1e4d-c0108c268dc2@10.232.50.91:51945;transport=tcp</a> SIP/2.0</div></div></div></div></div></div></div></div></div>
<br class=""><div class=""><br class=""></div><div class="">Thanks,</div><div class="">Mark</div><div class=""><br class=""></div></body></html>