Voice (POTS phone) and data work fine on the same line, except when the phone rings.
The link auto-negotiates 10Mbps, but when the phone rings the link is lost and the devices have to re-negotiate.
There is only one phone plugged directly into the phone port on the CPE.
If I force the link to run at only 5Mbps, the problem does not occur.
Do I need to use the LRE 48 POTS Splitter? (I hope not, as I only have 10 CPE's).