Asterisk – IT Blog

Blacklisting in Asterisk

I will give an example of blocking incoming calls by phone number, or you can perform other actions for the phone numbers specified in the list.

Zabbix trigger during business hours

In this article, I will give an example of creating triggers in Zabbix that can only fire at certain times, and not always.

Solution Registration failed due to STUN server (DNS resolving or connection) error (59) Zoiper

Once I installed the Zoiper application on the iPhone to connect to the telephony server and found an error:

Setting up SIP Trunk in Asterisk from Kyivstar

I will give an example of setting up a SIP Trunk in Asterisk from Kyivstar. Once it was necessary to increase the number of incoming lines, at first I used Goip4 gateways and 6 Kyivstar SIM cards, but when all the lines were busy, the clients could not get through, even hear the answering machine / voice menu, so I signed a contract for SIP Trunk with the Kyivstar manager.

Solution for warning Asked to transmit frame type ulaw, while native formats is (g729) read/write = ulaw/ulaw

Once a user made a call and Asterisk began to display a lot of warnings, and there was also no sound:

Asterisk. MP3 for Music on hold (moh)

In this article, I will provide an example of setting up MP3 for Music on hold (moh) in Asterisk.

ABillS. Installing and configuring Callcenter

Once in one company, in order to simplify the search for callers in ABillS, it was necessary to install the Callcenter module, which has different capabilities, but what we needed was pop-up notifications in the browser with a link to the caller’s page.

Asterisk. Music on hold

In this article, I will provide examples of changing music on hold, force music on hold, and more.

Asterisk Call Forwarding

Let me give you an example of setting call forwarding in Asterisk.
For example, on Grandstream IP phones, you can enable redirection by the functions of the phone itself, but if the phone is far away and there is no way to do it on it, but it is possible to log in using the SIP number of this phone, then to activate call forwarding, you can make a voice menu when dialing a certain number, for example, *21 to activate call forwarding and enter the phone number to which calls will be forwarded, and *22 to cancel call forwarding.

Solution the error “rc_avpair_new: unknown attribute 1490026597”

I noticed once an error in the logs /var/log/syslog: