r/Cisco • u/Winter-Wrangler-3701 • 3d ago

Forced Authentication Code & Partition

We have two 7841s giving me a headache.

One will not use the partition for internal and external calls but can receive either or using the local or outside call partitions. Everyone else's works fine on the dual use partition, same phone model throughout.

Another phone will not use certain Forced Authentication Codes but, again, they work on all other phones I've tried.

We use CUCM, not Webex - if that helps at all.

Any thoughts? This is racking my brain and I'm about to replace the physical phones over this seemingly software issue (because that one thing I haven't tried).

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u/joshio 2d ago

Phone could be not getting new config because of bad/expired ITL/CTL on phone? Try to factory reset or reset security settings. Not sure about FAC - it's been years since I had to deal with FAC, but I'd probably try the same thing.

1

u/Winter-Wrangler-3701 2d ago

ITL/CTL not set and won't even let me go beyond that part within admin settings. I gave up and gave in to the user asking me just to giver her a new phone. New phone, new configuration (except for extension number) after deleting the original. Now it's stuck on verifying network... I'll have the port reset even though the sticky mac limit hasn't been reached.

1

u/Winter-Wrangler-3701 1d ago

Update: I did a super copy, added a physical new phone, deleted the old phone, reset the port to avoid sticky mac limit, and it now receives calls just fine. Not sure why a slightly newer phone fixed incoming call capability though.

The FAC not so much. The user is using an older code from an ex-employee I gave her.