[Serusers] HELP: AVPOPS serial forking - sr-users

10 Jan 2005

Hi all.

I'm trying to "uncomplicate" my ser.cfg and part of this is coming up with a
simplistic way to
handle failover to voicemail and unconditional call forwarding (forward busy and forward
no answer
are also needed, but I'll do this later).

So serial forking seems perfect for this job but I'm having trouble getting it
working.

I added the "type" to usr_preferences as described in the avpops README. And my
ser.cfg was
modified similar to example 8.4 in the avpops online documentation at
http://www.voice-system.ro/docs/avpops/ar01s08.html#ex_serial_forking

My partial ser.cfg is below. Can anyone tell me why ser will not route calls? I just get
dead air
when I dial a number. I can see in my MySQL logs that avpops is querying the database -
but I
don't see how it is putting the read DB values in to the $serial_fork AVP. I also see
plenty of
errors regarding media_proxy - so I know my code is messed up.

Many Thanks!
Paul

modparam("avpops", "avp_url",
"mysql://ser:heslo@localhost/ser")
modparam("avpops", "avp_table", "usr_preferences")
modparam("avpops", "avp_aliases", "serial_fork=i:665")

route {

	### all the usual stuff

	if (uri=~"[@:](192\.168\.|10\.|172\.(1[6-9]|2[0-9]|3[0-1])\.)" &&
!search("^Route:")){
        	sl_send_reply("479", "We don't forward to private IP
addresses");
	        break;
	};

	if (method=="INVITE" || method=="ACK") {
		use_media_proxy();
	};

	if (method=="INVITE") {

		# a hack to get the user's voicemail URI in to avp
		# since the voicemail server is an external server
		if (is_user_in("Request-URI", "voicemail")) {
			rewritehostport("11.22.33.44:5060");
			avp_write("$ruri", "$serial_fork");
			revert_uri();
		};

		# load the "callfwd" attribute, if any, for the called party
		avp_db_load("$to/username", "s:callfwd");

		t_on_failure("1");
		t_on_reply("1");
	};

	if (!t_relay()) {
		if (method=="INVITE" || method=="ACK") {
			end_media_session();
		};

		sl_reply_error();
	};
}

failure_route[1] {

	# if caller hung up then don't sent to voicemail or forward
	if (t_check_status("487")) {
		break;
	};

	if (avp_pushto("$ruri", "$serial_fork")) {
		avp_delete("$serial_fork");
		t_on_failure("1");
		t_relay();
	};
}

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