Hi,
 
I'd like to use ISDN call on single line with the option to resume second line not on demand but whenever i like to. Until now i dial using "Only first available device" option in properties and when i need more speed i open status / properties, change the above option to "All devices", close properties / status, reopen it and resume next line.
I found that way a bit difficult so is it possible to have "Resume" button always available even when dialing a single line ?
 
thanks