International Calls recording

Hello…

When i record local landline or mobile phones, the recordings are perfect, but when i record international mobile phones, i can hear my voice in the recording but the voie in the other side starts playing after 30 to 40 seconds… I seem to lose the beginning of the other’s side voice…

I have Asterisk form PBX in a Flash distro, with Digium Wildcard B410P and four ISDN BRI lines…

Any ideas?

Thanks in advance…