234Syntaxmodem callbackundo modem callbackDefaultCallback is disabled.ViewsSystem viewPredefined user rolesnetwork-adminUsage guidelinesThe callback function enables a modem to disconnect an incoming call and call back the calling partyupon request.Examples# Enable the callback function. system-view[Sysname] modem callbackmodem caller-number resolveUse modem caller-number resolve to enable the modem to obtain the call numbers of callingterminals.Use undo modem caller-number resolve to disable the modem from obtaining the call number ofcalling terminals.Syntaxmodem caller-number resolve [ ata-waiting-time time ]undo modem caller-number resolveDefaultThe modem does not obtain caller numbers when it accepts calls from terminals.ViewsUser line viewPredefined user rolesnetwork-adminParametersata-waiting-time time: Specifies the maximum amount of time that the modem waits for a callingterminal to send the call number. The value range for thetime argument is 10 t o 10000, inmilliseconds. The default value is 1000. Whenthis timer expires, the modem does not receive thecall number of the terminal. Increase the timer value on a s low link for the router to obtain callernumbers successfully.Usage guidelinesCAUTION:Executing this command disconnects the modem connection that has been established on the userline.
