GW_ALX#show run | sec voice service
voice service voip
 allow-connections h323 to h323
 allow-connections h323 to sip
 allow-connections sip to h323
 allow-connections sip to sip
 fax protocol t38 version 0 ls-redundancy 0 hs-redundancy 0 fallback none
 h323
 modem passthrough nse codec g711ulaw
 sip
  bind control source-interface GigabitEthernet0/0
  registrar server
GW_ALX#show run | sec fall
 fax protocol t38 version 0 ls-redundancy 0 hs-redundancy 0 fallback none
call fallback active
call-manager-fallback
 video
  maximum bit-rate 2048
 secondary-dialtone 0
 max-conferences 8 gain -6
 transfer-system full-consult
 timeouts interdigit 3
 ip source-address 10.25.15.6 port 2000
 max-ephones 200
 max-dn 200
 system message primary SRST - Contingencia
 transfer-pattern .T
 voicemail 30999
 call-forward pattern .T
 moh "flash:/MOH_UCM9_Schin_Rock.ulaw.wav"
 multicast moh 239.1.1.1 port 16384 route 10.25.15.6 1.1.1.1
 time-zone 17
 time-format 24
GW_ALX#