| 1.Asterisk integration with PSTN is preferred. |
| 2.Asterisk integration with Database MySQL and MSSQL |
| 3.Experience in installing Hosted VoIP |
| 4.MySQL and Telephony Domain. |
| 5.Ability to test and troubleshoot Asterisk applications issues |
| 6.Kamailio SIP Server |
| 7.Scripting with Shell, Perl |
| 8.SIP and IAX |
| 9.Knowledge of C programming in Asterisk |
| 10.Strong knowledge of multi-asterisk server architecture |
| 11.Sound knowledge of Asterisk Dial-plan, Asterisk Gateway Interface and Asterisk Manager Interface. |
| 12.Worked on Queue, IVR and Voicemail related applications. |
| 13.Expert in Asterisk installation, configuration and troubleshooting. |
| 14.WEBRTC |
| 15.Expert knowledge installing and configuring Asterisk with PSTN card. |
| 16.Experienced with Linux (LAMP) servers Centos, Apache, MySQL, PHP |
| 17.R & D skills in Asterisk. |