problem of allocation DSP This topic has 1 reply, 1 voice, and was last updated 16 years, 1 month ago by MikeM to Driss. Viewing 2 posts - 1 through 2 (of 2 total) Author Posts 29th October 2007 at 01:34 #31584 driss benattouGuest hello, we had one Call Manager that is connected to DX2030, this last is connected via E1 to DX2060 that is connected finally to provider. the scheme is like this : Cisco Call Manager ——–> DX2030 ——–> DX2060 ———–> Provider the problem is when i make call, i have in the trace of DX2060 prompted out in screen the message : “FullDuplex DSP allocation failed”, and the busy tone heared please help me to find solution thanks 29th October 2007 at 02:55 #31585 MikeM to DrissGuest Driss, This usually means you have exceeded the number of DSPs available for VoIP. You did not mention how many E1s are connected between the 2 DXs, but if you have 2,the DX2030 will only support 30 VoIP calls (even though it will have 60 E1 channels). MikeM firstname.lastname@example.org Author Posts Viewing 2 posts - 1 through 2 (of 2 total) The forum ‘Voice over IP’ is closed to new topics and replies.