Sangoma always tests with 32 E1's in their labs... so I know it can do it. /b On Jan 18, 2011, at 2:26 PM, Holger Esser wrote: > All, > > Does anybody have experience with implementing 4 Sangoma octal cards and bridge these channels to SIP sessions on a single server for a total of 1536 sessions (TDM+SIP) > > Regards, > Holger