tdma Bc V42 Tx N401 Frame Size

This attribute indicates the current value of parameter N401 for V.42 which is negotiated during Exchange Information (XID). This is the maximum number of octets that can be carried in the information field of an information frame that the IWF V.42 transmits to the PSTN modem. The IWF V.42 puts this or even smaller size of data into the outgoing information frame. The value used for XID negotiations can be provisioned via TdmaCs/* V42.