​PON network equipment, the structure and communication mode of access

PON network equipment, the structure and communication mode of access to office network environment
1. Use GPON or EPON to form a local area network, then whether the ONU and OLT equipment support the current security verification commands on Huawei's access layer switches.
2. By placing an ONU terminal in each office location, whether the original IP telephone system can be accessed.
3. If the ONU of each employee's office card has wireless transmission, how to avoid the problem of channel interference.

Thank you