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h1. Goal (short description)

Routing of inter domain sessions over a TLS encrypted link between a SER and an OpenSER proxy&nbsp;

h1. Applicability

Inter-domain SIP routing over TLS

h1. Prerequisites (OS, dependencies on other software)

Both proxies should have TLS&nbsp;enabled between itself and connected UAs.&nbsp;

SER proxy: see

OpenSER proxy: see

h1. OS specific help

In /usr/local/etc/openser/openser.cfg, add routing to the other domain:
\\

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; # check for requests targeted out of our domain
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; if (\!uri==myself) {
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; # mark routing logic in request
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; append_hf("P-hint: outbound\r\n");
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; # if you have some interdomain connections via TLS
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; if(uri=~"@sipx1.ces.net") {
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;~ {                         t_relay("tls:sipx1.ces.net:5061");
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;                         xlog("L_INFO", "Time \[%Tf\] Route to ces.net :%rm RURI:%ru&nbsp;%ru  FROM:%fu TO:%tu \n buffer %mb \n flags \n %mf \n");
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; exit;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; }                          exit;                 }else if(uri=~"@sipx.ten.cz") 
{ t_relay("tls:sipx.ten.cz:5061");
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;                         xlog("L_INFO", "Time \[%Tf\] Route to ten.cz :%rm
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;                         RURI:%ru FROM:%fu TO:%tu \n buffer %mb \n flags \n
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;                         %mf \n"); exit;
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;                 }
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; route(1);
\\

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; };


h1. Validation, confirmation tests

In MS Windows Messenger 5.1 choose:

Tools \->

Options \->

Accounts tab \->

enable 'my contacts include users of a SIP communications service' and fill in under 'sign-in name:' <username>@<domain>

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