MCU transmit + H.263 instead of H.264

Hi all

As you know, by configuring "Optimizing the size of video transmission" as "dynamic codec and resolution", MCU optimizes the video codec transmission and pass the resolution.

But how does the MCU determine video codec?

I wonder why MCU transmits video with H.263 + C20 (TC4.2) even if the MCU receives video with H.264 and there seems to be no factor to degrade the video codec (such as packet loss and so on).

Best regards

Kotaro Hashimoto

What is the bandwidth on call between MCU and C20?

Ideally, MCU lower resolution video/code if the original size of the video displayed (especially with the voice changer mode) is smaller than the outgoing video channel.

Also, if the remote end point to use control flow and reduces the bandwidth on the MCU main video transmission channel.

But also if call bandwidth is low, H.263 base with higher cadence (instead of H.264 video payload large base mind lower-rate) may choice as the best experience of video stream.

Tags: Cisco Support

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    26 ' $'.

    27 ' %'.

    28 '& ',.

    29 '' '.

    30 ' ('.

    31 ' )'.

    32 ' *'.

    33 ' +'.

    34 ' ,'.

    35 ' ‐'.

    36 ' .'.

    37 ' /'.

    38 ' :'.

    39 ' ;'.

    40 ' < ',.

    41 ' ='.

    42 ' > '.

    43 ' ?'.

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    45 ' ['.

    46 ' \'.

    47 ' ]'.

    48 "BE."

    49 ' _'.

    50 ' `'.

    51 ' {'.

    52 ' |'.

    53 ' }'.

    54 "˜"

    55' ',

    56 ""

    57 "¢."

    58 "£"

    59 ' ¤',.

    60 «¥»,

    61 '¦ ',.

    62 «§»,

    63 ' ¨'.

    64 ' ©'.

    65 "ª"

    66 ' ' ', '.

    67 '¬"

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    69 '®',

    70 '¯ ',.

    71 "°",.

    72 "±"

    73 '²',

    74 '³',

    75 "Honourable."

    76 "µ",.

    77 "¶"

    78 "·"

    79 '¸ ',.

    80 '¹',

    81 'º"

    82 '' '.

    83 ' &fr;'.

    84 ' &fr;'.

    85 ' &fr;'.

    86 ""

    87 'TO. "

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    89 'A ',.

    90 'A ',.

    91 'A ',.

    92 'A ',.

    93 "AE."

    94 ' &il;'.

    95 'E ',.

    96 'E ',.

    97 'E ',.

    98 'E ',.

    99 'I ',.

    100 'I ',.

    101 "I."

    102 'I ',.

    103 "D."

    104 "N."

    105 "O."

    106 "O."

    107 'O,

    108 "O."

    109 "O."

    110 'x',

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    113 "U."

    114 "U."

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    119 "to."

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    126 'e ',.

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