GCK Service Pack 12 HotFix 3 (GCK_SP12_HF2 v12.3.0)

This release serves as an update to GCK Service Pack 12. 
  GCK Service Pack 12 must be installed before applying this hotfix. 


Package Download link: https://ied-gck.s3.amazonaws.com/ServicePack12/GCK_SP12_HF3.gcz


Detailed Description:
Device Config 		v4.0.1.2
Intercom Service	v3.0.1.0
SMC			v2.1.7587.29047
Telephone Service	v4.0.2.0
vACS			v5.1.0.15
vACS Discovery		v4.0.1.3

HF3 (v12.3.0)
GCK-454 (SMC/DevCon): Changing IP Speaker levels only works for the first speaker in the IP endpoint group.
GCK-456 (Tel): Tel gets locked up if you hang up too quickly.
GCK-469 (IC Service): Not correctly reading in the IC Request Acknowledge tone.
GCK-447 (vACS): Not routing BGM to the proper Dante transmitter on a T112.

HF2 (v12.2.0)
GCK-434 (vACS): Not updating all mic templates when instructed to by the SMC.

HF1 (v12.1.1)
GCK-419 (vACS): Support new DAB cobranet (4x8) modules.
GCK-423 (Disco): Not always discovering T112 and DNA amps.
GCK-424 (SMC): Enabled level slider on zone forms for dante devices.
GCK-425 (Disco): Stop extraneous ARP traffic.
GCK-427 (Dante): Improve ability to set mic GPIO reducing occurances of timeouts.
GCK-428 (vACS or Dante): Fix ability to stop Dante routes after a delayed annc is preempted.
GCK-430 (vACS): Touch screen mics not always being updated when they request it.