We are intending to deploy 2800 ISR routers with VIC2-2FXS ports in them to support analog cordless phones. I have not been able to find any option for hold or transfer for the analog handsets. ATA modules work, however there is too much echo.
I have found lines such as "The interpretation of the hookflash cannot be changed to represent other features like conference or three−way call."
The routers are currently configured for MGCP and connected to CCM4.1(3)
