What script processes the contact headers returned from a redirect request?

6. Advanced Routing Advanced Routing
1

I’m trying to modify/add some logic for data returned from a sip redirect. I cant seem to locate which route script file processes the contact header and then routes the call.

2

Hi

You need to use the redirect_routing.rb script.

3

Yes I know, that will setup the routing to the redirect server. However, what actual script processes the contact header in the reply from the redirect server?

4

ın the script, starting from the following line process the contact header.

if (contact_index == 0)

5

The reply from the redirect will miss that block as contact_index will be populated. There is no “Else” in that file.

6

Hi

You can use something like following

if (contact_index >= 1)

This section will be called for each contact

We need to create a new set of routes and not modify the original one, thus the cloning

newroutes =
routes = clone_routes params[:routes]
log_trace 1, "AAA routes = " + routes.inspect

log_trace 1, "New contact = " + contacts.inspect
contact_info = contacts[:list][contact_index][:sip_uri]
log_trace 2, "This contact index = " + contact_info.inspect

Extract the IP or domain from the 302 (will be different for each contact)

ipaddress = contacts[:list][contact_index][:sip_uri].match(/@(.*)/)
log_trace 2, "IP address found = " + ipaddress[1].inspect

If you need more help on scripting, you need to go with ProSBC and but 9x5 Professional Support hours.

7

Thanks! I see what you did there. Very Happy