The 908e model will support two full PRIs (46 channels) as well as the eight analog lines. There is a possibility of some contention if all 46 PRI channels are in use as well as all 8 of the analog lines, but this would be unlikely. Total DSP resources is 48 available.
There's also a 908e-L5 which is less expensive and will only support 24 total DSP resourcess. This might be a better choice for you if only supporting one PRI with little or no analog usage.
For that matter, a 904 will also support a full PRI, cheaper yet but only has one Ethernet port and one T1 for data plus the PRI.
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