Description: Used to enable or disable the modem bypass feature of the Tenor. Standard analog modem to analog modem communications over IP is extremely unreliable; therefore, the Tenor has a feature to help this process. When this feature is enabled (value of 1), if a modem call is made and goes over IP, when the modems connect and attempt to synchronize, the Tenor detects the synchronization tones and disconnects the modem call. The Tenor also stores the number that was originally dialed in to an internal bypass table. The next time that the modem call is attempted, the Tenor sees the call attempt, matches the number dialed to the entry in the bypass table and routes the call directly to the PSTN and not over the IP. For the purposes of this section, the prompt will be shown as config pstntg 1# or config pbxtg 1#.
Cmd Type: command.
Prompt Level: config pstntg 1# and config pbxtg 1#
Syntax: modembypass or modem {0 | 1}
Arguments:
0 Modem calls will be allowed over IP.
1 Modem calls will not be allowed over IP and will be bypassed the 2nd time they are dialed.
Default: 0 - No (allow modem calls)
Availability: All releases of Analog & Digital Tenor units. As of software release P4-2-4, the default value of this command was changed from 1 (bypass) to 0 (allow IP calls).
Examples:
config pstntg 1# modembypass 0
Allows modem calls to go over IP from the first PSTN Trunk Group.
config pbxtg 1# modembypass 1
Does not allow modem calls to go over IP from the first PBX Trunk Group.
Note
Modem Numbers like the one described in this example are stored in an internal and TEMPORARY Bypass Table for only 5 minutes.
Any known permanent modem lines should be entered into the BDN Table.