FAX Scenario 1
The following ingress and egress policies are used for this FAX scenario.
| Ingress Policy | Egress Policy | ||
|---|---|---|---|
| allow-codecs | * | allow-codecs | T.38:no |
| add-codecs-on-egress | add-codecs-on-egress | G711FB | |
| order-codecs | order-codecs | ||
| force-ptime | disabled | force-ptime | disabled |
| packetization-time | packetization-time | ||
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In the following diagram, there are three offer-answer exchanges. Initially a PCMU-to-PCMU session is negotiated. Next, a T.38 to PCMU session is negotiated. Finally, the session reverts to non-transcoded PCMU to PCMU state.
