[H.323] TCS negotiation rule of HUAWEI

Encountered a capability negotiation issue when conferencing with a HUAWEI terminal.

It happened in a dual stream(H.239) capability negotiation.

1. According to the H.245 TCS, both terminal have 1080P 60 fps capability.
2. The band width setting was extreme low.
3. HUAWEI sent a OLC request with 4CIF H.264 video.

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