We are using Panasonic analog cordless phone. This analog phone is attached to VIC-4FXS card. The voice gateway is running H.323.
Based on the Panasonic instructions, We can press the recall button on the phone to switch to 2nd call.
How can I get the voice-gateway to recognize the signal when I press the recall key. I heard something about Hookflash.But has no idea about how to config it on the voice gateway.