How does FMC from a mobile operator integrate with corporate Asterisk?

Question

Asterisk

Is it necessary to receive a stream from the FMC provider? Or is it done through a channel terminated on an asterisk from a SIP provider?
In general, how justified is the FMC solution (with integration to the asterisk)?
Tell me, please, who has experience.

Answer 1

You get a SIP trunk from the operator (beeline, for example). The operator, for its part, prescribes routes to this trunk from your pool of corporate numbers. According to a pre-agreed numbering plan, you write a route to this new trunk for your part.

Answer 2

This is a little hack to check if the function exists and run it.

// В pageEvent либо undefined либо функция
// Т.е мы не вызываем next, а копируем ее в pageEvent
var pageEvent = Installer.Pages[Installer.ActivePage].next

// Если pageEvent == undefined, то вторая часть условия не выполнится. Иначе будет запуск pageEvent()
pageEvent && pageEvent()