Is it possible to have a button on the attendants console tie to an analog line that is connected via SIP?  The system is a UC560 with a SPA8000 providing additional analog phone ports.   The operator’s station is a SPA525 w/ a 500 series side cart. ...

Can anybody help point me with the following??I have a UC560 and several SPA525G phones.   I would like the users extension to show up on multiple lines.  This makes it easier for the users to switch back an forth between calls that they have on hold...