Web Development - CRM Application

We are looking for a small CRM software

1) User management
2) Accounts (Company) Management
3) Contact Management (Contacts are linked to Company)
4) Call list management (Call lists are of contacts assigned to users)
5) Task management ( User can create and assigned task to himself and other users
6) Email/Interaction management with Contacts
7) Document management for contact and companies,

Technologies
Angular - Frontent, resposive UI with mobile and Tab usability.
Backend - Php/.NET C#
Database - MySQL/MSSQL