McDewey

Trunk Groups are a collection of physical voice-ports with similar signaling capabilities. This is a feature which can be employed to reduce the total number of POTS dial-peers that need to be configured. Trunk groups were introduced into Cisco IOS in 12.1(3)T and are present in all versions of Cisco IOS XE. Full Documentation: Gateway Trunk and Carrier Based Routing Enhancements Configuration Example

! trunk group PSTN description PSTN voice-ports ! trunk group FXO description FXO voice-ports ! voice-port 0/2/0 trunk-group PSTN 1 ! voice-port 0/2/1 trunk-group PSTN 2 ! voice-port 0/2/2 trunk-group FXO 1 ! voice-port 0/2/3 trunk-group FXO 2 ! dial-peer voice 1234 pots trunkgroup PSTN 1 trunkgroup FXO 2 !