Windows Telephony was unable to complete an operation
Posted on 2001-07-27
We have supplied our client a new PCMCIA 56k (Zonet) modem for use with their Toshiba laptop, running
Windows 95. Their original Psion modem was damaged by a power surge through the phone lines in a recent
Speaking to them over the phone, they appear to have installed it correctly, (removed old modem drivers,
and even re-installed the new ones again). Use of Modem "diagnostics" finds it OK, I have gone through
all settings with them, all appear fine, but whenever they try to dial, (testing using phone dialler,
foe example) simply a click is heard and the message:
"Windows Telephony was unable to complete an operation requested by phone dialler".
No response to AT commands in Hyperterm. Nothing specific in the Microsoft knowledgebase that I could
find. Any suggestions?