On Thursday 10 January 2008 18:03:36 CSB wrote:

I want to provide for forwarding of calls to voicemail in various circumstances, one of which is when the user is not registered with the registrar. I've looked at various example configuration files that include forwarding (e.g. http://www.sipwise.com/wizard, onsip.org) and have not seen an implementation of this. Could anyone provide any tips regarding this or is it as simple as:

route[3] {

    # -----------------------------------------------------------------

    # INVITE Message Handler

    # -----------------------------------------------------------------

<snip>

    if (!lookup("location")) {

            if (avp_db_load("$ruri/username", "$avp(i:20116)")) {

                    avp_pushto("$ruri", "$avp(i:20116)");

                    t_relay;

                    return;

            } else {

                    sl_send_reply("404", "User Not Found");

                    return;

            };

<snip>

Am I missing something obvious or is this really quite simple?

You could reply a: 181 Call Is Being Forwarded before the "t_relay":

if (avp_db_load("$ruri/username", "$avp(i:20116)")) { sl_send_reply("181","Call Is Being Forwarded"); avp_pushto("$ruri", "$avp(i:20116)"); t_relay; return;

But AFAIK you are rigth. How you tried it? ;)

- 181 Call Is Being Forwarded

Regards

Cameron