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In order to know how many simple channels are used, thus how many calls the gateway can handle, we need to sum up the channels used in both calls.
| From | To | SIP-Sessions | Nr. of simple channels used for one SIP to SIP call | max calls handled by bf400 | max calls handled by bf1600 | max calls handled by bf6400 |
|---|---|---|---|---|---|---|
| G.711 | G.711 | 1 | 2 | 8 | 32 | 64 |
| G.711 | G.729 | 1 | 5 | 3 | 12 | 42 |
| G.729 | G.729 | 1 | 8 | 2 | 8 | 32 |