[SR-Users] Problem with parallel forking
Hi all,
I'm using kamailio 3.1 and I have some problems with parallel forking.
I need to implement parallel forking to different users registered on
kamailio.
So, when call arrives with R-URI= sip:003912345678@, I need
to fork te call to (for example) 2 users: 1001 and 1001.
To do that, I've created my usr_preferences table like this:
++--+--++---+--+---+-+
|/ id | uuid | username| domain | attribute | type | value |
/last_modified |
++--+--++---+--+---+-+
|/ 1 | | /003912345678/ || fork |0 | 1001 |
|
/|/ 2 | | /003912345678/ || fork |0 | 1002 |
|
/++--+--++---+--+---+-+
and I've added a code to my kam.cfg like this:
if (is_method("INVITE"))
{
xlog("L_INFO", "REQUEST Invite - M=$rm RURI=$ru F=$fu T=$tu IP=$si
ID=$ci\n");
if(avp_db_load("$ru/username","$avp(s:fork)"))
{
avp_pushto("$ru/username","$avp(s:fork)/g");
}
if(!lookup("location"))
{
xlog("L_INFO", "Local user offline - M=$rm RURI=$ru F=$fu T=$tu
IP=$si ID=$ci\n");
sl_send_reply("404", "User Offline");
exit;
}
else
{
xlog("L_INFO", "Local user online - M=$rm RURI=$ru F=$fu T=$tu
IP=$si ID=$ci\n");
t_relay();
}
}
If 1001 and 1002 are registered everything works fine (1001 Ringing and
1002 ringing).
Ifonly 1001 registered everything works fine (1001 ringing and 1002 is
offline.).
But when 1002 is registered and 1001 in offline, kamailio try to call
1001, find that it's offline ( and I get 404 User Offline") but no call
to 1002 is attempted.
What's wrong ?
Regards,
Daniel
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Re: [SR-Users] Problem with parallel forking
Hello,
the problem is that lookup(location) is handling only R-URI, so if ruri
is for user XYZ and that is offline, then will return false.
Since you create many branches with avp_pushto(), other destinations
added as extra branches will be not attempted because of
lookup(location) condition.
The best is to relay the call after the avp_pushto(), so you will get
two branches (or more) coming back via loopback and then you do lookup
location for each:
if(src_ip!=myself)
{
if(avp_db_load("$ru/username","$avp(s:fork)"))
{
avp_pushto("$ru/username","$avp(s:fork)/g");
t_relay();
exit;
}
}
if(!lookup("location"))
Be sure you skip authentication or other checks when the requests comes
back due to such loop, using if(src_ip==myself) conditions.
Cheers,
Daniel
On 1/21/11 11:10 AM, Daniel Grotti wrote:
Hi all,
I'm using kamailio 3.1 and I have some problems with parallel forking.
I need to implement parallel forking to different users registered on
kamailio.
So, when call arrives with R-URI= sip:003912345678@, I need
to fork te call to (for example) 2 users: 1001 and 1001.
To do that, I've created my usr_preferences table like this:
++--+--++---+--+---+-+
|/ id | uuid | username | domain | attribute | type | value
|/last_modified |
++--+--++---+--+---+-+
|/ 1 | |/003912345678/ || fork |0 | 1001 |
|
/|/ 2 | |/003912345678/ || fork |0 | 1002 |
|
/++--+--++---+--+---+-+
and I've added a code to my kam.cfg like this:
if (is_method("INVITE"))
{
xlog("L_INFO", "REQUEST Invite - M=$rm RURI=$ru F=$fu T=$tu IP=$si
ID=$ci\n");
if(avp_db_load("$ru/username","$avp(s:fork)"))
{
avp_pushto("$ru/username","$avp(s:fork)/g");
}
if(!lookup("location"))
{
xlog("L_INFO", "Local user offline - M=$rm RURI=$ru F=$fu T=$tu
IP=$si ID=$ci\n");
sl_send_reply("404", "User Offline");
exit;
}
else
{
xlog("L_INFO", "Local user online - M=$rm RURI=$ru F=$fu T=$tu
IP=$si ID=$ci\n");
t_relay();
}
}
If 1001 and 1002 are registered everything works fine (1001 Ringing
and 1002 ringing).
Ifonly 1001 registered everything works fine (1001 ringing and 1002 is
offline.).
But when 1002 is registered and 1001 in offline, kamailio try to call
1001, find that it's offline ( and I get 404 User Offline") but no
call to 1002 is attempted.
What's wrong ?
Regards,
Daniel
___
SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
sr-users@lists.sip-router.org
http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
--
Daniel-Constantin Mierla
Kamailio (OpenSER) Advanced Training
Jan 24-26, 2011, Irvine, CA, USA
http://www.asipto.com
___
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Re: [SR-Users] Problem with parallel forking
Thank you Daniel,
That was what I was looking for.
Cheers,
Daniel G.
Il 21/01/2011 12:04, Daniel-Constantin Mierla ha scritto:
Hello,
the problem is that lookup(location) is handling only R-URI,
so if ruri is for user XYZ and that is offline, then will return
false.
Since you create many branches with avp_pushto(), other
destinations added as extra branches will be not attempted
because of lookup(location) condition.
The best is to relay the call after the avp_pushto(), so you
will get two branches (or more) coming back via loopback and
then you do lookup location for each:
if(src_ip!=myself)
{
if(avp_db_load("$ru/username","$avp(s:fork)"))
{
avp_pushto("$ru/username","$avp(s:fork)/g");
t_relay();
exit;
}
}
if(!lookup("location"))
Be sure you skip authentication or other checks when the
requests comes back due to such loop, using if(src_ip==myself)
conditions.
Cheers,
Daniel
On 1/21/11 11:10 AM, Daniel Grotti wrote:
Hi all,
I'm using kamailio 3.1 and I have some problems with parallel
forking.
I need to implement parallel forking to different users
registered on kamailio.
So, when call arrives with R-URI= sip:003912345678@,
I need to fork te call to (for example) 2 users: 1001 and
1001.
To do that, I've created my usr_preferences table like this:
++--+--++---+--+---+-+
| id | uuid | username | domain | attribute | type | value | last_modified |
++--+--++---+--+---+-+
| 1 | | 003912345678 || fork |0 | 1001 | |
| 2 | | 003912345678 || fork |0 | 1002 | |
++--+--++---+--+---+-+
and I've added a code to my kam.cfg like this:
if (is_method("INVITE"))
{
xlog("L_INFO", "REQUEST Invite - M=$rm RURI=$ru F=$fu T=$tu IP=$si ID=$ci\n");
if(avp_db_load("$ru/username","$avp(s:fork)"))
{
avp_pushto("$ru/username","$avp(s:fork)/g");
}
if(!lookup("location"))
{
xlog("L_INFO", "Local user offline - M=$rm RURI=$ru F=$fu T=$tu IP=$si ID=$ci\n");
sl_send_reply("404", "User Offline");
exit;
}
else
{
xlog("L_INFO", "Local user online - M=$rm RURI=$ru F=$fu T=$tu IP=$si ID=$ci\n");
t_relay();
}
}
If 1001 and 1002 are registered everything works fine (1001
Ringing and 1002 ringing).
If only 1001 registered everything works
fine (1001 ringing and 1002 is offline.).
But when 1002 is registered and 1001 in offline, kamailio
try to call 1001, find that it's offline ( and I get 404 User
Offline") but no call to 1002 is attempted.
What's wrong ?
Regards,
Daniel
___
SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
sr-users@lists.sip-router.org
http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
--
Daniel-Constantin Mierla
Kamailio (OpenSER) Advanced Training
Jan 24-26, 2011, Irvine, CA, USA
http://www.asipto.com
--
Ing.
Daniel
Grotti - System
Engineer
Certified
Asterisk Professional dCAP
Mobile:
+39 331 6907200
Office: +39 059 821672
Fax: +39 059
821492
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[SR-Users] Problem with parallel forking of aliases
Greetings, I'm having trouble getting parallel forking to work with aliasdb. I'm running kamailio 3.2 with the standard kamailio.cfg script. I have found that if an alias points to a set of addresses that all reference local devices that are registered with the server, kamailio sends an invitation to the first device in the set (the one that the aliasdb lookup function sets to the ruri, but does *not* invite any of the other devices in the set, which aliasdb adds as branches. However, if one of the other aliases points to a non-local address, such as a PSTN address, kamailio does correctly invite the non-local address in parallel with the first alias address, which is a local device. It seems as if kamailio is ignoring invitations that it is in effect sending to itself via the additional parallel branches. I would expect that to call a branch in parallel, kamailio would need to do a lookup on the branch address and rewrite it to send the invitation to the registered device. But none of that seems to be happening. There must be some additional configuration change required to make this work. Any suggestions? -- Mark Sidell Partner Forte, Inc. 919-942-7068 fax 919-969-2844 www.forteinc.com ___ SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list sr-users@lists.sip-router.org http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
