Dear All, Look like nibblebill does't work with multiple gatreway. I try <action application="set" data="nibble_account=0838833133"/> <action application="bridge" data="{absolute_codec_string='GSM,G729'}[nibble_rate=0.3]sofia/external/6626734000@203.xxx.xxx.xxx |[nibble_rate=0.5]sofia/external/6626734000@202.xxx.xxx.xxx> nibblebill not found nibble_rate But <action application="set" data="nibble_rate=0.05"/> <action application="set" data="nibble_account=0838833133"/> <action application="bridge" data="{absolute_codec_string='GSM,G729'}sofia/external/6626734000@203.xxx.xxx.xxx |sofia/external/6626734000@202.xxx.xxx.xxx> Work fine What's difference from set application and [] ? Best Regards. Dome C.