I am in the process of setting up quite a few modems off of vg224’s that will need to negotiate connectivity (both in/out) to devices that run between 300-33.6k baud rates with the majority being in the 300-9600 range.
Does anyone know if this will work, and how well?
Are there any limitations on extreemly slow modems on VG224s
The setup is currently SCCP and using modem passthrough.
While I can't give you a definite answer on the low speeds, I can tell you that as far as I know, 14.4 is likely the highest rate you are going to get on a VG224. Any of the support I've gotten either through TAC or support forums/lists say to remove SG3 support (33.6->14.4 and remove ECS) in order to make things work.
That being said, there was some mention of SG3 support coming down the line:
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Topology: IP Phone > Switches > Microsoft NPS setup to forward 802.1x
proxy to > ISE 2.1 patch 3 Authentication: EAP-TLS using Cisco MIC SANs
Phone Models 802.1X support? 802.1x flavor Addtl Comment EAP-MD5 EAP-TLS
Cisco 3905 Y Y N Cisco 6911 Y Y N Cisco ...