Within most Voip solutions it is possible to answer phone calls from within a pop-up. This will open the Voip system. It would be great if this can be done from within the Trengo pop-up as well.
Thanks for sharing Ellemiek! We are currently improving our Voice feature with several new features. I am not 100% sure if this is already included, but I will check and I will come back to you.
We have looked into the plausability for this feature and have chosen to not implement it at this time. A lot of browsers block these kinds of features.