The selective call acceptance allows controlling incoming calls by making a list of telephone numbers which you are ready to accept. But incoming calls from subscribers that are not listed are directed to the answering machine by which the caller is informed that you do not accept calls at the moment.
SAND (Software Applications Networking and Development) was originally founded in Cairo, in 1999 as a Software Development company.
Since its founding, SAND has been providing high quality projects in different fields. The most prominent of which are