VoIP
Voice Over IP
In this article you will learn how to install TURN Server on Ubuntu 20.04 LTC for WebRTC, configure Coturn with Long Term Credential Mechanism, configure IPTables firewall, check TURN server. The TURN server implements the STUN protocol also. Coturn is… Continue Reading
In this article I will how to fix FusionPBX wrong time. FreeSwitch time can be drift from the Linux system time. It will create problem for FusionPBX CDR and Time condition functionality. Lets compare Linux System time and FreeSwitch time… Continue Reading
How to fix FusionPBX problem when unable start Internal Profile – internal: Invalid Profile [internal]. In debug logs: Debug shows: [ERR] switch_core_db.c:108 SQL ERR [file is encrypted or is not a database] Remove .db files that are in the DB… Continue Reading
In this article I will show how to enable multiple registrations on FusionPBX. It will help have multiple VoIP phones registered in FusionPBX or FreeSwitch, and receive simultaneous incoming calls on that devices. Multiple registrations would need to be enabled… Continue Reading
In this article you will learn how to install FreeSWITCH G729 Free Codec on FusionPBX. Download free G729 Codec Go to FreeSWITCH modules directory: # cd /usr/lib/freeswitch/mod Download mod_bcg729.so file from http://repo.sip247.com/debian/ into this directory # wget http://repo.sip247.com/debian/mod_bcg729.so Call FreeSWITCH… Continue Reading
In this article you will learn how to convert FusionPBX Call Recordings from WAV to OGG (OPUS) with Linux script. This script finds yesterday *.wav FisionPBX call recordings, convert them to opus and then delete. After updates CDR records. Script… Continue Reading
Asterisk SIP Trunk Registration Example Below you see Asterisk SIP trunk registration simple example. So edit sip.conf file and add register string to register Asterisk SIP trunk in [general] section. register=>SIP_ID:Password@Your_SIP_Provider_Host_or_IP Then fill host, username, secret with… Continue Reading
Using tcpdump for SIP and RTP Diagnostic (tcpdump examples) The tcpdump is a powerful command-line packet analyzer may use for for dumping traffic on a network. For more information about tcpdump options see man pages. Below you see tcpdump command… Continue Reading
Adtran Total Access 924 Initial Configuration Connect to CRAFT port. There is no username password by default. TA924> en TA924# TA924# configure terminal TA924(config)# interface eth 0/1 TA924(config-eth 0/1)# no shutdown TA924(config-eth 0/1)# ip address dhcp TA924(config-eth 0/1)# end … Continue Reading
List of SIP response codes 1xx—Provisional Responses 100 Trying Extended search being performed may take a significant time so a forking proxy must send a 100 Trying response. 180 Ringing Destination user agent received INVITE, and is alerting user of… Continue Reading