– Kamailio SIP Server –

Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Next revision		Previous revision
examples:caller-callee-same-group [2006/10/20 21:34] – created 86.121.131.153examples:caller-callee-same-group [2012/03/22 12:33] (current) – removed spam 80.250.1.245
Line 1: Line 1:
 +====== Determine if both the caller and the callee are in the same group ======
 +
 +
 +How to use Attribute Value Pairs (AVP's) to determine if both the caller and the callee are in the same group?
 +
 +A real world example would be to limit friends to only calling friends that are in the same group of friends.
 +
 +1) Create two entries in the usr_preferences table.
 +
 +One entry is associated with the caller and the other is associated with the callee.
 +Both entries use "friend" as the attribute and "groupa" as the value.
 +
 +2) Add the following AVP alias definition:
 +
 +<code>
 +modparam("avpops","avp_aliases", "temp=i:59;......)
 +</code>
 +
 +3) Add the following code to the INVITE section of your configuration:
 +
 +<code>
 +avp_db_load("$from/username", "s:friend");
 +avp_copy("s:friend", "$temp");\\
 +avp_db_load("$ruri/username", "s:friend");
 +
 +# xlog("L_NOTICE", "friend avp: ($avp(s:friend))\n");
 +# xlog("L_NOTICE", "temp avp: ($avp(i:59))\n");
 +
 +if (avp_check("s:friend", "eq/$temp") ) {
 +  xlog("L_NOTICE", "friend avp: ($avp(s:friend))\n");
 +  xlog("L_NOTICE", "temp avp: ($avp(i:59))\n");
 +};
 +</code>
  

Trace: