Hi There
I have been working with asterisk since 2007, I have the enough knowlegde about Dialplan, sip extensions, iax extensions, queues, MOH, voicemail, meetme, asterisk manager, monitoring channels and all about asterisk, about SIP trunk registering and making calls, record calls, about macros and connect with databases on Mysql, in my experience the solutions of everything is in the protocol so I have master the sip protocol and I know everything about almos all asterisk applications and functions.
I am providing technical support for around 250 asterisk PBX on Mexico, US and Latin America, everything is done remotely, and is solve asap.
I can provide support directly to asterisk server or Teamviewer, anydesk or remote terminal, so you can see how the things are done.
Best Regards.