Hi
As per my expertise, in your voip based crm, we can implement lots of features in this.
starting from login , tracking functionality, area wise filtration method and many more functions can be done in this crm
I have developed 50+ crm in my past with great success. I would like to know the all features that you want in your crm.
My portfolio contains some of crm, if you would like to see you can check out there.
Please inbox me so i can share my crm demo link and will share credentials with you
Thanks
Vijay