I can send a message to Skype user and I can receive message from him. But I can't get messages that user sent to bot while server is down.
For example, Facebook Messenger Platform will resend the webhook event every 20 seconds, until a 200 OK response is received. Viber also used webhook url. But Skype does not resend to my bot at least 15 minuts.
I realized a simple Echo Bot. The bot messaging endpoint isn't Azure. The bot is not published, but can be added to Skype contacts. I use REST API.
Any help is welcome. Sorry for my bad English
