/mcpip address 10.10.10.10 255.255.255.0 frame−relay ip rtp header−compression frame−relay interface−dlci 100 class voice ! interface Serial4/0:0.2 point−to−point bandwidth 192 ip address 20.20.20.20 255.255.255.0 frame−relay interface−dlci 200 class data ! map−class frame−relay data frame−relay fragment 80 frame−relay adaptive−shaping becn frame−relay cir 256000 frame−relay bc 32000 frame−relay be 0 frame−relay mincir 192000 frame−relay fair−queue ! map−class frame−relay voice frame−relay fragment 80 no frame−relay adaptive−shaping frame−relay cir 64000 frame−relay bc 640 frame−relay be 0 frame−relay mincir 64000 service−policy output VoIPoFR ! ! access−list 101 permit tcp any any eq 1720 ! ! voice−port 3/1/0 ! voice−port 3/1/1 ! ! dial−peer voice 10 voip incoming called−number . destination−pattern 1408....... session target ipv4:10.10.10.11 dtmf−relay h245−signal h245−alphanumeric no vad ! dial−peer voice 20 pots destination−pattern 1234 port 3/1/0 ! dial−peer voice 21 pots destination−pattern 5678 port 3/1/1 VoIP Over PPP − QoS Configuration Example In this example (which contains only relevant sections of the configuration), it is assumed that the QoS needs to be configured for a point−to−point fractional T1 controller (that has twelve channels). A maximum of four simultaneous voice calls exists at any given time. The configuration task involves configuring this serial interface with PPP encapsulation, making it part of a multilink group, creating a multilink interface (that belongs to the same multilink group), and configuring all the QoS on the multilink interface. For further details about the configuration of VoIP over PPP, refer to VoIP over PPP Links with Quality of Service (LLQ / IP RTP Priority, LFI, cRTP). 3660−1#show run