4.20.34. PrmT38BROverride (Limit Modulation and Bit Rates)

Parameter Number: 0x1b3e

Description: The PrmT38BROverride parameter limits the modulation and bit rates for all fax calls. Each modulation has its own range and baud rate that it supports. For V.27, the rates are 2400 and 4800 baud. For V.29, the rates are 7200 and 9600 baud. For V.17, the range is 7200 to 14400. Setting this parameter to V27_ONLY limits the negotiates fax session to just V.27. Setting this parameter to V29_BEST limits the negotiate fax session to V.27 or V.29.

Values:

• 0 = Enable all modulations and bit rates
• 1 = V27_ONLY (disables V.29+)
• 2 = V29_BEST (disables V.17+)

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