Hi,

i'm building  a mobile terminal device supporting transparent V.32
data calls to/from PSTN and GSM. i'm evaluating a number of third
party GSM modems that  support CSD using V.32 modems.

as different GSM modems have different problems, i'm on the lookout
for test equipement for the GSM modems that does the following:
=> sniff the GSM air interface for my GSM data call only and filter
V.110 data frames and the resulting E bits, S bits, X bit that are
interleaved amongst the data frame
OR
=> emulate the Mobile station at one side and present the resulting
the resulting trace information during emulation

any ideas on suitable test products

Cheeers,
Don