Setting up the speed dial is easy. Fill in the speed dial short number, the actual number to call, the name and click OK then click Apply.
Doesn't work for me through VOIP, but it might do through the sim if I still had a phone plugged into the router.
If you've set up VOIP details, I expect it will route through that. Easy to tell: can your mobile and see what number is calling.
Mine worked perfectly well in 4G in an incoming call. Perhaps it is to do with the Three service area.
I have a directional antenna, because I have clear line of sight to more than one base station. Works brilliantly: signal level mostly varies between >=-51 and -55dBm, SINR usually around 10dB to 13dB but sometimes it drops to 0.
The antenna is sitting inside an upstairs window. I expect outdoors would be better, but that means climbing a ladder.
Edited by hoopla (Tue 02-Jul-19 17:07:50)