I've tried periodically to set "Always use prime line" to True. but I after a couple of days I have to set it back to False because I start to receive reports from random users that they pick up a ringing call and receive dead-air instead of the call. I'd love to use the "always use prime line" feature; the default is very inconvenient for most of my users. Has anyone run into this before? Part of my problem is that I really can't leave the glitched-up users in this position while I work with TAC to resolve since I know what would fix it immediately. Thanks in advance for your help!
I'm sure a Phone Firmware upgrade would solve this problem. I searched the Bug Toolkit 7900 series Firmware for issues with the 7940/7960 and 'Always Use Prime Line" and sure enough the only one is associated with 7.x firmware.
CSCsa63770 Bug Details
Headline Always use prime line is not working with 7.1.2 phone load
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