• MVA allows users to call into the enterprise from any phone and place outgoing calls that appear to come from their office phone
• Originate enterprise calls from any remote destination by:
  • Dialing to the enterprise MVA number
  • Entering ID (if required) and PIN
  • Entering destination number to be called
• Called party sees the office phone number as the calling party
• Switch active calls between office and remote phone

• H.323 or SIP gateway providing Mobile Voice Access IVR application
• Out-of-band DTMF
• Remote destination must be external devices

• When calling into MVA, the CSS on the line and the CSS on the Remote Destination Profile are combined to determine the effective user CSS.
• New in CUCMv7, there is a new CUCM service paraemter that determines the CSS for MVA calls: Inbound CSS for Remote Destination
  • This can be set to the trunk or gateway inbound CSS (Default)
  • Or the Remote Destination Profile + Line CSS (same behaviour in CUCMv6 handling).

• Activate the Cisco Unified Mobile Voice Access Service
• Under CCMService > Tools > Service Activation

• Under System > Service Parameters > Cisco CallManager
• Enable MVA globally
• Enable and configure enterprise feature access
  • Allow remote device to use various code to trigger various call function such as hold, transfer, resume — etc.
• Configure MVA number 2999, this is what get pass to the VXML script on the router.

• Under User Management > User
• Enable MVA per end user

• Under Media Resource > Mobile Voice Access
• Configure MVA media resource
• The mobile voice access directory number must match what was configured on the router
• Locale - language setting

• Configure MVA VoiceXML application at Cisco IOS gateway
• Configure MVA application

application
  service mva http://<cucm-pub>:8080/ccmivr/pages/IVRMainpage.vxml

• Incoming POTS dial peer to match the MVA media resource setting on CUCM

dial-peer voice 29991 pots
  service mva
  incoming called-number 2999
  direct-inward-dial

• Outgoing voip dial peer to the MVA VXML number on CUCM
• Must include DTMF relay
• Must disable VAD

dial-peer voice 29992 voip
  destination-pattern 2999
  session target ipv4:<cucm-pub>
  dtmf-relay h245 alphanumeric
  codec g711ulaw
  no vad

• (Optional) Translation pattern to strip the full E.164 number to the short MVA directory number

voice translation-rule 1
  rule 1 /.*5552\(...$\)/ /2\1/
!
voice translation-profile pstn-in
  translate called 1
!
voice-port 0/0/0:23
  translation-profile incoming pstn-in

• PSTN dial peer for incoming and outgoing PSTN call

dial-peer voice 1 pots
  destination-pattern 9T
  incoming called-number 2...
  direct-inward-dial
  port 0/0/0:23
!
dial-peer voice 2 voip
  destination-pattern 2...
  session target ipv4:<cucm-pub>
  incoming called-number 9T
  codec g711ulaw