I've installed Micromax Q3 (Mobile Phone) gprs modem to Vista Home
Basic

I see my modem installed under Phone and Modem properties

But when I try to call this modem via
Control Pannel> Internet Options> Connections> Setup>
Set A New Connection Anyway> Dialup>

I get

Windows could not detect a dial-up modem
Is the modem connected?
Is the modem switched on?
error

Please help

Below is the modem Diagnostics
============================================
11-01-2009 22:34:35.076 - File: C:\Windows\system32\tapisrv.dll,
Version 6.0.6001
11-01-2009 22:34:35.096 - File: C:\Windows\system32\unimdm.tsp,
Version 6.0.6001
11-01-2009 22:34:35.097 - File: C:\Windows\system32\unimdmat.dll,
Version 6.0.6000
11-01-2009 22:34:35.099 - File: C:\Windows\system32\uniplat.dll,
Version 6.0.6000
11-01-2009 22:34:35.127 - File: C:\Windows\system32\drivers
\modem.sys,
Version 6.0.6001
11-01-2009 22:34:35.203 - File: C:\Windows\system32\modemui.dll,
Version 6.0.6001
11-01-2009 22:34:35.209 - File: C:\Windows\system32\mdminst.dll,
Version 6.0.6001
11-01-2009 22:34:35.209 - Modem type: MTK GPRS Modem
11-01-2009 22:34:35.209 - Modem inf path: oem10.inf
11-01-2009 22:34:35.209 - Modem inf section: Modem1
11-01-2009 22:34:35.209 - Matching hardware ID: mtkgprsmodem
11-01-2009 22:34:35.210 - Opening the modem device failed with error
00000002
ATQ0V1E0 - OK
AT+GMM - +CGMM: MTK2
AT+FCLASS=? - (0, 1, 2, 2.0)
AT#CLS=? - COMMAND NOT SUPPORTED
AT+GCI? - COMMAND NOT SUPPORTED
AT+GCI=? - COMMAND NOT SUPPORTED
ATI1 - MTK2
E502_2.PR.R1.ID.V0.1
ATI2 - MTK2
E502_2.PR.R1.ID.V0.1
ATI3 - MTK2
E502_2.PR.R1.ID.V0.1
ATI4 - MTK2
E502_2.PR.R1.ID.V0.1
ATI5 - MTK2
E502_2.PR.R1.ID.V0.1
ATI6 - MTK2
E502_2.PR.R1.ID.V0.1
ATI7 - MTK2
E502_2.PR.R1.ID.V0.1
ATQ0V1E0 - OK
AT+GMM - +CGMM: MTK2
AT+FCLASS=? - (0, 1, 2, 2.0)
AT#CLS=? - COMMAND NOT SUPPORTED
AT+GCI? - COMMAND NOT SUPPORTED
AT+GCI=? - COMMAND NOT SUPPORTED
ATI1 - MTK2
E502_2.PR.R1.ID.V0.1
ATI2 - MTK2
E502_2.PR.R1.ID.V0.1
ATI3 - MTK2
E502_2.PR.R1.ID.V0.1
ATI4 - MTK2
E502_2.PR.R1.ID.V0.1
ATI5 - MTK2
E502_2.PR.R1.ID.V0.1
ATI6 - MTK2
E502_2.PR.R1.ID.V0.1
ATI7 - MTK2
E502_2.PR.R1.ID.V0.1
ATQ0V1E0 - OK
AT+GMM - +CGMM: MTK2
AT+FCLASS=? - (0, 1, 2, 2.0)
AT#CLS=? - COMMAND NOT SUPPORTED
AT+GCI? - COMMAND NOT SUPPORTED
AT+GCI=? - COMMAND NOT SUPPORTED
ATI1 - MTK2
E502_2.PR.R1.ID.V0.1
ATI2 - MTK2
E502_2.PR.R1.ID.V0.1
ATI3 - MTK2
E502_2.PR.R1.ID.V0.1
ATI4 - MTK2
E502_2.PR.R1.ID.V0.1
ATI5 - MTK2
E502_2.PR.R1.ID.V0.1
ATI6 - MTK2
E502_2.PR.R1.ID.V0.1
ATI7 - MTK2
E502_2.PR.R1.ID.V0.1
ATQ0V1E0 - OK
AT+GMM - +CGMM: MTK2
AT+FCLASS=? - (0, 1, 2, 2.0)
AT#CLS=? - COMMAND NOT SUPPORTED
AT+GCI? - COMMAND NOT SUPPORTED
AT+GCI=? - COMMAND NOT SUPPORTED
ATI1 - MTK2
E502_2.PR.R1.ID.V0.1
ATI2 - MTK2
E502_2.PR.R1.ID.V0.1
ATI3 - MTK2
E502_2.PR.R1.ID.V0.1
ATI4 - MTK2
E502_2.PR.R1.ID.V0.1
ATI5 - MTK2
E502_2.PR.R1.ID.V0.1
ATI6 - MTK2
E502_2.PR.R1.ID.V0.1
ATI7 - MTK2
E502_2.PR.R1.ID.V0.1