old sx-200 (analog/digital) trunk has no DTMF dialing - 10/05/12 08:50 PM
sx-200 analog/digital cabinet seems has lost DTMF.Can receive calls & dials out but very slow.
I have check the line polarity it seems fine.
Any help?
Thanks in advance.
I have check the line polarity it seems fine.
Any help?
Thanks in advance.