I’m beginning to notice more an more my sms alerts are getting delayed. For instance, I have an alert to send me a text when my Schlage entry door is open/close. I would leave the house through the front door and then maybe 5 minutes later I get an alert that my door is locked.
Have you logged into the Vera portal and checked the time stamps on the notifications.
There are a lot of “hops” for an SMS message. The delay could be in Vera, Vera’s servers, the phone networks, the phone itself.
You’re going to need to do some testing.