Specifications

Design Consideration for a VoFR Network 15
The IBM 2212 does not support the above network design with two leased lines
to carry voice, because the IBM 2212 can only specify one frame relay network
number to carry voice. So this network design needs a IBM 9783 with IBM 2212 A
to communicate voice from 2212 B to 2212 C.
Figure 11. IBM 2212 with PBX Voice Configuration with Leased Line
You may think that a PBX has the capability of call routing like the IBM 9783. But
it is necessary to have an IBM 9783 with an IBM 2212A to allow voice traffic from
a 2212B to 2212C, because the IBM 2212 can have only one frame relay network
number specified to carry voice.
Figure 12. IBM 2212 with IBM 9783 Leased Line Configurations
In Figure 12 the two IBM 2212s are connected using leased lines to the IBM
9783. There is a maximum of 8 call processing rules per 2212 voice port
regardless of whether there is a 9783 in the network or not. An analog PBX
interface can connect to an IBM 9783 or IBM 2212 using an E&M card. IBM
recommends that you use the IBM 2212 E&M card for analog PBX interface and
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