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Jabber iPhone TCT in CUCM 9+ only

APN is a cloud push for IM from what I read, not doing IM but Jabber for iPhone with Phone Only with CUCM 11.5.1SU4. On premise only, no cloud access. Is APN required for iPhone in background with Phone Only?
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Hall of Fame Cisco Employee

Re: Jabber iPhone TCT in CUCM 9+ only

No, that understanding is wrong.

APNS was actually delivered in two phases by Cisco, first IM (SU2), and then voice (SU3).

 

APNS is used by any app that goes to the background and needs to receive a notification.

HTH

java

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Contributor

Re: Jabber iPhone TCT in CUCM 9+ only

So for on-premise voice only, can't use Apple iPhone connected to WiFi. Apple requires Internet at all times to run in background for voice only.
Hall of Fame Cisco Employee

Re: Jabber iPhone TCT in CUCM 9+ only

Yes, the device needs to have internet connectivity at all times to get the notification from the APNS cloud.

 

https://faq.whatsapp.com/en/iphone/20950116/

https://support.apple.com/en-us/HT203609

 

HTH

java

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