I am trying to setup Shared Line Appearance to emulate Key System functionality. I finally succeeded in getting it to work partially, but each line is requiring two line buttons on the phone; one for the line (extension), and one for the SLAStation. I’m pretty sure I have the Asterisk side of the configuration correct, but I can’t find any documentation on how to make this work (correctly) from the phone side of the configuration. Also, no matter matter what I do, when a call is placed on hold, the indicator LED just shows solid red (In Use).
Does anyone have any experience getting this working correctly with the Cisco SPA50xG or LinkSys SPA942 phones.
Any help is appreciated. Documentation and examples seem scarce on the web.