ACME Session-Agent TCP CRLF Support

Hello All

I have a question using a Session-Agent with TCP.

Scenario:
Endpoints come into the SBC from behind ta Session-Agent - initial call setup works.
During the call the double CRLF (PING PONG) is used to keep the ports open.
Endpoint/Phone System, sends TCP CRLFCRLF (PING) request towards the SBC.
The SBC ACKs the response but do not add the CRLF in the reply (PONG).

10 seconds later the port is closed from the Endpoint/Phone System.

Issue: If a re-invite mid call needs to go from SBC to Endpoint the SBC no longer has an open port to reach the device.