<HTML><HEAD></HEAD>
<BODY dir=ltr>
<DIV dir=ltr>
<DIV style="FONT-SIZE: 12pt; FONT-FAMILY: 'Calibri'; COLOR: #000000">
<DIV
style='FONT-SIZE: small; TEXT-DECORATION: none; FONT-FAMILY: "Calibri"; FONT-WEIGHT: normal; COLOR: #000000; FONT-STYLE: normal; DISPLAY: inline'>
<DIV dir=ltr>
<DIV style="FONT-SIZE: 12pt; FONT-FAMILY: 'Calibri'; COLOR: #000000">
<DIV>Hi,</DIV>
<DIV> </DIV>
<DIV>customers
PBX----trunk-----kamailio------------freeswitch-------------carrier</DIV>
<DIV> </DIV>
<DIV>We already add Trusted IP’s via SIREMIS 4.0</DIV>
<DIV> </DIV>
<DIV>is it possible with Kamailio to have customers calls come in on a trusted
IP and when they send calls we add a header with a [client id] which we can
remove on the next ip switch upstream</DIV>
<DIV> </DIV>
<DIV>So example</DIV>
<DIV> </DIV>
<DIV>Call comes in from customer with IP:</DIV>
<DIV>their trusted IP source xx.xx.xx.xx</DIV>
<DIV>add header with their client ID<BR><BR>route to PSTN<BR><BR>Then my
upstream switch will process the customers call and remove the header before
sending to our voip carrier. Basically my ip switch will evaluate the client id
header for billing, process and strip the header back out.</DIV>
<DIV> </DIV>
<DIV>Thanks</DIV>
<DIV><BR>Tony<BR></DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV> </DIV></DIV></DIV></DIV></DIV></DIV></BODY></HTML>