Inscrivez-vous ou connectez-vous pour rejoindre votre communauté professionnelle.
1- geographic information system.
2- Remote Procedure Call.
3- virtual call center.
4- Direct Inward Dialing.
I agree with the answers of Direct Inward Dialing
Thank you for you invitation :
4 - Direct Inward Dialing
Thanks
It is Virtual Call Center
I agree with experts answer. Thanks for the invitation. ..
Thanks invite. ........ I think choose 1
I apologize for the answer I leave the answer to the experts, specialists in this field that's not my area I wish you only invite specialists only