[cisco-voip] Jabber APNs config

[Pawlowski, Adam]

We'd planned for this for support this summer but with it being kicked out on Apple's end we took some pressure off.

That being said I'd tried to get this setup to work in our lab (11.5.1SU3) and it didn't work at all. I spent ages digging around finding that "Cloud Onboarding" was broken, certs didn't work, and it still barfs cert and trust errors into the XCP Config Manager log (I think that one?) and doesn't work.

Hopeful it operates properly in 12 but probably not then if it doesn't work in 11.5SU4.

Best,

Adam Pawlowski