As per the command line reference you can enter a configuration statement under call-manager-fallback that looks like this: Router(config-cm-fallback)#max-dn 3 dual-line 1 octo-line When you do this the router outputs the following: *Nov 8 21:59:34.323: %LINK-3-UPDOWN: Interface ephone_dsp DN 1.1, changed state to up *Nov 8 21:59:34.327: %LINK-3-UPDOWN: Interface ephone_dsp DN 1.2, changed state to up *Nov 8 21:59:34.335: %LINK-3-UPDOWN: Interface ephone_dsp DN 2.1, changed state to up *Nov 8 21:59:34.339: %LINK-3-UPDOWN: Interface ephone_dsp DN 2.2, changed state to up *Nov 8 21:59:34.347: %LINK-3-UPDOWN: Interface ephone_dsp DN 3.1, changed state to up *Nov 8 21:59:34.351: %LINK-3-UPDOWN: Interface ephone_dsp DN 3.2, changed state to up *Nov 8 21:59:34.351: %LINK-3-UPDOWN: Interface ephone_dsp DN 4.1, changed state to up *Nov 8 21:59:34.351: %LINK-3-UPDOWN: Interface ephone_dsp DN 4.2, changed state to up *Nov 8 21:59:34.351: %LINK-3-UPDOWN: Interface ephone_dsp DN 4.3, changed state to up *Nov 8 21:59:34.351: %LINK-3-UPDOWN: Interface ephone_dsp DN 4.4, changed state to up *Nov 8 21:59:34.351: %LINK-3-UPDOWN: Interface ephone_dsp DN 4.5, changed state to up *Nov 8 21:59:34.351: %LINK-3-UPDOWN: Interface ephone_dsp DN 4.6, changed state to up *Nov 8 21:59:34.351: %LINK-3-UPDOWN: Interface ephone_dsp DN 4.7, changed state to up *Nov 8 21:59:34.351: %LINK-3-UPDOWN: Interface ephone_dsp DN 4.8, changed st My question is this. It would appear that the configuration statement above configures 3 dual-line directory numbers and 1 octo-line directory number. How would one determine which phone will get the octo-line vs what phone will get the dual-line configuration? If you cannot determine or configure which phone gets the octo-line configuration what is the purpose of having the ability to configure both? I have a situation where I want to configure dual-line on all the phones except the main line reception phone. In SRST I'd like this phone to have an octo-line appearance to support the additional calls the main line receives. I require SRST because of the amount of phones (720 - the max supported). Is there a way to assign the octo-line to the main line reception phone? If not what is the purpose of this command? Thanks, Marc
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