ISDN Development, Components, and Mechanics

Lab 15a: Configuring Voice over Frame Relay ”Part I

Physical Layout and Prestaging

• Connect one of the Cisco voice-capable routers to the Serial 1/2 interface on the Cisco 2600 series router (Frame Relay switch), as shown in Figure 6-26.

• Connect the other Cisco voice-capable router to the Serial 1/3 interface on the Cisco 2600 series router (Frame Relay switch), as shown in Figure 6-26.

• Connect an analog phone set to each of the FXS interfaces on the Cisco voice-capable routers, as shown in Figure 6-26.

Configuring and Verifying Voice Ports

Configuring the ports on the router for the telephone headsets can be configured in the lab or as part of the prestaging. Example 6-1 shows the configuration for voice ports and for the Frame Relay switch that will be used in both the VoIP and VoFR labs.

Example 6-1 Configuring the Voice Ports and Frame Relay Switc

  hostname frame-switch   !   frame-relay switching   !  <<<text omitted>>>  !   interface Serial1/0   no ip address   encapsulation frame-relay   no fair-queue   clockrate 64000   frame-relay intf-type dce   !   interface Serial1/1   no ip address   encapsulation frame-relay   clockrate 64000   frame-relay intf-type dce   !    interface Serial1/2     no ip address     encapsulation frame-relay     clockrate 64000     frame-relay intf-type dce     frame-relay route 200 interface Serial1/3 100     !     interface Serial1/3     no ip address     encapsulation frame-relay     clockrate 64000     frame-relay intf-type dce     frame-relay route 100 interface Serial1/2 200     !   <<<text omitted>>>  end   frame-switch#  _________________________________________________________________  hostname vofr1   !  <<<text omitted>>>  !   voice-port 3/0/0   timeouts call-disconnect 0   !   voice-port 3/0/1   timeouts call-disconnect 0   !   voice-port 3/1/0   timeouts call-disconnect 0   !   voice-port 3/1/1   timeouts call-disconnect 0   !    dial-peer voice 11 pots     destination-pattern 1111     port 3/0/0     !     dial-peer voice 2222 vofr     destination-pattern 2222     session target Serial1/0 100    !  <<<text omitted>>>  !    interface Serial1/0     no ip address     no ip directed-broadcast     encapsulation frame-relay     no ip mroute-cache     frame-relay traffic-shaping     !     interface Serial1/0.1 point-to-point     ip address 150.150.10.1 255.255.255.0     no ip directed-broadcast     frame-relay interface-dlci 100     class voice     vofr cisco    !  <<<text omitted>>>  !   !    map-class frame-relay vofr     frame-relay voice bandwidth 64000     !     map-class frame-relay voice     frame-relay cir 768000     frame-relay bc 1000     frame-relay mincir 120000     no frame-relay adaptive-shaping     frame-relay fair-queue     frame-relay voice bandwidth 78000     frame-relay fragment 1500    !  <<<text omitted>>>  2!   end  vofr1#