Seven Easy Steps to Better SIP Security on Asterisk: 1) Don’t accept SIP authentication requests from all IP addresses. Use the “permit=” and “deny=” lines in sip.conf to only allow a reasonable subset of IP addresess to reach each listed extension/user in your sip.conf file. Even if you accept inbound calls from “anywhere” (via [default]) … Read more
I tried the following steps: Log in as super user or use sudo Open /etc/mysql/my.cnf using gedit Check the all the configuration Find bind-address, and change its value to the database server host machine’s IP address. For me, it was localhost or 127.0.0.1 Save and close the file. Come back to terminal and execute sudo … Read more
ISDN hangup cause codes provide information as to why a call has been terminated. The list of hangup cause codes below provides detailed information as to the underlying cause behind a call hangup: Code No. 0 This is usually given by the router when none of the other codes apply. This cause usually occurs in … Read more
Using $ If you want to set a global variable containing the another variable name in the [globals] category of extensions.conf you have to do something like this: [globals] SS=$ MY_VAR=${SS}{EPOCH}-${SS}{EXTEN}.gsm This way the MY_VAR value is ${EPOCH}-${EXTEN}.gsm Using it with the EVAL() function is very useful. I.e. if you want to record you can do this: … Read more
Asterisk channel variable DIALSTATUS Contains a text string signifying result of the last dial attempt: ANSWER: Call is answered. A successful dial. The caller reached the callee. BUSY: Busy signal. The dial command reached its number but the number is busy. NOANSWER: No answer. The dial command reached its number, the number rang for too … Read more
This is an ADD-ON of asterisk, is not installed by default and must be downloaded and installed with the asterisk-addons package. However, in Asterisk 1.8 the addons have been integrated back into Asterisk. MYSQL(): Basic MYSQL Database Functionality (note that the help information returned from ‘show application MYSQL’ is a little misleading – what’s shown … Read more
SQL Table Structure If using the dialplan below, put the following table into a database called ‘acd‘. CREATE TABLE `bit_callers` ( `uniqueid` varchar(15) NOT NULL default ”, `callback` int(3) NOT NULL default ‘0’, `callbacknum` varchar(15) NOT NULL default ”, PRIMARY KEY (`uniqueid`), KEY `callback` (`callback`) ) ENGINE=InnoDB DEFAULT CHARSET=latin1; Dialplan Additions [support-queue] exten => s,1,Answer … Read more
general ; ; Global settings for call queues Persistent Members ; Store each dynamic member in each queue in the astdb so that when asterisk is restarted, each member will be automatically read into their recorded queues. Default is ‘yes’. ; persistentmembers = yes Keep Stats ; Keep queue statistics during a reload. Default is … Read more
Dump and restore from .sql Dump mysqldump db_name table_name > table_name.sql Restore mysql -u <user_name> -p db_name mysql> source <full_path>/table_name.sql or in one line mysql -u username -p db_name < /path/to/table_name.sql Dump and restore from a compressed (.sql.gz) format Dump mysqldump db_name table_name | gzip > table_name.sql.gz Restore gunzip < table_name.sql.gz | mysql -u username … Read more
You have the 6 channels, and basically you have 6 calls going on… Now when you hang up the do hang up, they dont get stuck right? So you have 6 different peopel on the line and when 7 hits they block you and essentially your phone system is dead….? Ok, one thing you could … Read more