CSR has UC520W (8 user) with integrated 3 port FXO. Using Verizon FiOS for Internet and 4 analog lines.
CSR experiencing low volume on voice calls, even when handset volume is all the way up.
CSR voice stations are CP-7945 and CP-7941.
We have bypassed the UC520 and plugged analog phones into the FiOS analog demarc, and quality is fine.
