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According the this information we can say that 1 complex channel = 4 simple channels (With exceptions for the BF6400box).
Our gateways are compatible with lots of different SIP codecs. Depending on the codec, a simple channel or a complex one will be used on the gateway when it transcodes.
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- SIP to Gateway = 1 call with x number of simple channels used
- Gateway to SIP = 1 call with x number of simple channels used
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 | 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 | 2 | 8 | 32 | 64 |
| G.711 | G.729 | 5 | 3 | 12 | 42 |
| G.729 | G.729 | 8 | 2 | 8 | 32 |
| G.711 | T.38 | 5 | 3 | 12 | 25 |
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