FYI.. 350 ans 340 series are EOS/ EOL
http://www.cisco.com/en/US/prod/collateral/wireless/ps5678/ps458/prod_end-of-life_notice0900aecd805fee16.html
is 350 running VXvorks or IOS?? I guess we can, hvnt tried though.. if it runs.. then 350 bridges works on 11 mbps...b radio...so for it to work with 1240...1240 needs to set basic rate to 11 mbps that is b radio..
lemme know if this answered your question..
Regards
Surendra
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Regards
Surendra BG