Question on H.323 V2 Annex C

Hi,

Section C.3.7.2 of H.323 V2 states that "The portNumber field of the OpenLogicalChannel message is conveyed in the B-HLI information element." Shouldn't the portNumber field of the OpenLogicalChannelAck message be conveyed in the B-HLI information element since the receiver of the OpenLogicalChannel is the endpoint which starts listening for the ATM connection with the given B-HLI? If it is in fact the endpoint that initiates the OpenLogicalChannel command who is responsible for choosing the B-HLI isn't there a possibility that the given B-HLI is already in use at the other endpoint? Thank you.

Kaynam