Upvote:5
This is possible. My partner does this, she has one British SIM in her phone where she makes/takes British calls, and one Czech SIM where she makes/takes Czech calls. This way she avoids any fee's from foreign numbers, but I believe it depends on the specific provider you use, as some of them may charge extra for making calls outside of Egypt.
Alternatively have you considered using calls over something like WhatsApp or Skype, this way you can make the same type of voice calls, to anywhere in the world, using either WiFi or a data plan instead of charging as a phone call?