I have an older KX-T30810 Rev.3 and need to share one port with both phone types which the manual addendum for Version 3 says it will do. This option is enabeled for Ext 18 in programming.

Ether type of set works as it should when connected alone. Probelm is that if the SLT is connected and you connect the proprietary set, talk bettery is removed from the SLT so it cannot be used to make/receive calls but will ring when the Ext is dialed.

Is this how it should work. Am I missing something?

Don, is the MOH activated on the pits set?
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MrG

By MOH, do you mean Music on Hold or Background Music, using 751# on the pits? If so, then yes.

Yes, music on hold, turn it off and see if the slt comes to life when paralleled.
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MrG

That was it! In hindsight, I can see where having MOH on would cause the problem as it dedicates a path to the pits. This was also causing a stutter dial tone on the slt when going off-hook so I guess that should have been a clue as well. Anyway, thanks for the help. -don