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CCIE Voice Test

Instructions:

Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can study here.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.

1. When configuring a Gatekeep-controlled trunk - what do you do with the Wait for Far End H.245 TCS option?
Uncheck it! Otherwise both H323 devices on either end wait for the other to send TCS first - and the connection will timeout.
The + character is not supported on a VOIP dial-peer.||So you'll need to add back on the POTS dial-peer before it gets to the PSTN via a voice translation-rule.
(config)#isdn switch-type primary-net5|(config)#network-clock-participate wic 0||(config)#Controller e1 0/0/0|(config-controller)#pri-group timeslot 1-3 !!!Get the PRI up!!!|(config-controller)#no shut||(config)#int s0/0/0:15|(config-if)#isdn outgoin
1st the Subnet is recognized. (Device Mobility Info)|Then different Physical Locations are compared.

2. What is Mobile Voice Access?
CUCM Service Parameters --> Automated Alternate Routing Enable --> True
When I call in from off-net to a DID number in-net ... once authenticated - your calls appear to come from the desk phone.
Matches any length dialed number and truncates it to 4 digits.
1. Complicated Hunt Group|2. Need to support Calling Name|3. Need to support Call Park Call Pickup

3. Is the + character supported on a VOIP dial-peer?

4. Which takes precedence Device Locations or Device Pool Locations?
Device Pool Locations
Bottom up - to prevent glare.
Mobile Connect
#voice service voip| #no supplementary-service h225-notify cid-update

5. What are the commands to ensure an H323 GW always uses the Sub as primary and Pub as a backup?
When multiple sites use the same route pattern - do your digit manipulation on a route list.
#voice class h323 1| #h225 timeout tcp establish 3||#dial-peer voice 3000 voip| #destination-pattern 3...| # voice-class h323 1| #session target ipv4:10.1.5.3 (sub)| #dtmf-relay h245-alpha||#dial-peer voice 30001 voip| #destination-pattern 3...| #pre
IP Voice Media Streaming App
To notify SIP Phones of NTP

6. What's the best way to do digit manipulation on an IOS gateway?
Redundant dial plan. One on CUCM and one on the routers via dial-peers.
Outbound dial-peers
voice translation-profile|and|voice translation-rule
(config)#isdn switch-type primary-net5|(config)#network-clock-participate wic 0||(config)#Controller e1 0/0/0|(config-controller)#pri-group timeslot 1-3 !!!Get the PRI up!!!|(config-controller)#no shut||(config)#int s0/0/0:15|(config-if)#isdn outgoin

7. What are the steps to integrate CUPS with CUCM?
CAT IOS|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10 --> !!!DATA VLAN!!!
SERVICE PARAMETER>|| Block Offnet to Offnet Transfer - Set to True
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
On CUCM -- UPTSAL||Create Your Users|Phone - set owner id|Create SIP Trunk|SIP Trunk Security Profile||Application Server|Licensing||||On CUPS||Work Left to right

8. How do you block calls under call-manager-fallback?
#after-hours block pattern
Call forwarding between voip to voip (when CUBE is in play)
SIP Dial Rules
Service Parameters --> Mobile Voice Access Number

9. What are the commands to configure NTP in IOS?
(config)#clock timezone|(config)#ntp server/master|(config)#sh ntp status to verify
Ephone-dn 1 <dual / octo>|number 3001|description 3214-3001 !!! PHONE BANNER !!!||ephone 1|mac-address 001b.d4c6.ca99|button 1:1|type 7961|max-calls-per-button 5|busy-trigger-per-button 3
At the CLI: utils ntp status
Apply it to the ephone.

10. Where can you find the command to restore any of the default IP Phone Services if they happen to have been deleted?
In the CUCM 7.0.1 Release Notes ... search for restore.
Use the alias static configuration||alias static (IP of CUCM) gkid (GK ID) gateway voip ras (IP of CUCM) e164 (dn) e164 (dn) e164 (dn)
When configuring TEHO.
Gatekeeper - zone local GK cisco.com 10.1.6.1 - zone local CUCM cisco.com invia GK outvia GK - zone local BR2 cisco.com invia GK outvia GK

11. On an H323 GW - how do you adjust the timers for redundancy hunting?
System --> Phone NTP Reference|Then Apply to System --> Date/Time Group
Top Down means that channel 1 will be the first channel used to place outgoing calls.
h225 timeout tcp establish 3 within a h323 voice class||#voice class h323 1|#h225 timeout tcp establish 3
It's best to strip digits at the voice port.

12. When dealing with an MGCP GW there is no intelligence on the router. How would you strip an incoming Called Number from 10 to 4 digits?
Sends the Calling Name.
#interface vlan 130 (voice vlan)| #h323-gateway voip interface| #h323-gateway voip id BR2 ipaddr 10.1.6.1| #h323-gateway voip h323-id UK| #h323-gateway voip bind srcaddr 10.1.130.1
In CUCM on the PRI interface of the MGCP Gateway - set the Significant Digits to 4.
Vlan database|vlan 130 name DATA|vlan 240 name PHONES|apply|exit

13. What CM Service needs to be start in Serviceability for MOH to work?
IP Voice Media Streaming App
Put them in a route list.
In CUCM - configure CFUR to point to it's E164 number.
In milliseconds ... allows you to hang up cell phone then pick up at the desk phone without disconnecting the call.

14. How do you setup AutoRegistration in CUCM?
h225 timeout tcp establish 3 within a h323 voice class||#voice class h323 1|#h225 timeout tcp establish 3
System Cisco Unified CM|Uncheck the box Auto-Reg Disabled||Enterprise Parameters --> Auto Registration Phone Protocol SIP or SCCP
Re-enter the mgcp bind control and mgcp bind media commands.
Device Settings --> Softkey Template|Copy a template and make your changes.|Then apply to the device.

15. How do you prevent toll fraud on CUCM?
Use the alias static configuration||alias static (IP of CUCM) gkid (GK ID) gateway voip ras (IP of CUCM) e164 (dn) e164 (dn) e164 (dn)
Bottom up - to prevent glare.

SERVICE PARAMETER>|| Block Offnet to Offnet Transfer - Set to True

16. How do you create a trunk on the switch side?
In CUCM on the PRI interface of the MGCP Gateway - set the Significant Digits to 4.
CAT IOS|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10 --> !!!DATA VLAN!!!
Device Settings --> Softkey Template|Copy a template and make your changes.|Then apply to the device.
Matches any length dialed number and truncates it to 4 digits.

17. Describe how you configure SIP URI functionality.

h225 timeout tcp establish 3 within a h323 voice class||#voice class h323 1|#h225 timeout tcp establish 3
8kb/s
sh ephone reg|and|debug voip dialpeer

18. When do you use translate called? Translate calling?
#voice class h323 1| #h225 timeout tcp establish 3||#dial-peer voice 3000 voip| #destination-pattern 3...| #voice-class h323 1| #session target ipv4:(SUB IP)| #dtmf-relay h245-alpha||#dial-peer voice 30001 voip| #destination-pattern 3...| #voice-clas
Use IPs instead of hostnames for all CUCM servers.|ENTERPRISE PARAMETERS --> Replace all CUCM hostnames with IPs in URLs
Translate called - Calls going out to the PSTN||Translate Calling - Use on calls coming in from the PSTN. To change the ANI (Caller ID)
In CUCM on the PRI interface of the MGCP Gateway - set the Significant Digits to 4.

19. In Gatekeeper CAC how do you restrict a specific endpoint?
Gatekeeper|endpoint resource-threshold|endpoint max-calls h323id gk-trunk_2 1||The bandwidth command only allows restriction between zones
Interface f0/0|no ip address|no shut||interface f0/0.10|encap dot1q 10 native --> !!! DATA VLAN !!!|ip address 10.10.100.1 255.255.255.0|interface f0/0.20|encap dot1q 20 --> !!! VOICE VLAN !!!|ip address 10.10.200.1 255.255.255.0
Translate called - Calls going out to the PSTN||Translate Calling - Use on calls coming in from the PSTN. To change the ANI (Caller ID)
...

20. What is the Enable Enterprise Feature Access Service Parameter used for?
Higher
Proxy Line Mode has multiple icons on the phone.|Shared Line Mode has only one.
To enable two-stage dialing.
Redundant dial plan. One on CUCM and one on the routers via dial-peers.

21. Where do you use VIA zone?
Auto Call Pickup Enabled
#voice class h323 1| #h225 timeout tcp establish 3||#dial-peer voice 3000 voip| #destination-pattern 3...| # voice-class h323 1| #session target ipv4:10.1.5.3 (sub)| #dtmf-relay h245-alpha||#dial-peer voice 30001 voip| #destination-pattern 3...| #pre
Gatekeeper - zone local GK cisco.com 10.1.6.1 - zone local CUCM cisco.com invia GK outvia GK - zone local BR2 cisco.com invia GK outvia GK
Use the alias static configuration||alias static (IP of CUCM) gkid (GK ID) gateway voip ras (IP of CUCM) e164 (dn) e164 (dn) e164 (dn)

22. When you make a call and it results in a secondary dial-tone - What is this a symptom of?
Vlan database|vlan 130 name DATA|vlan 240 name PHONES|apply|exit
Phone number followed by domain name.|i.e. 3006@ipxcme.com
CAT IOS|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10 --> !!!DATA VLAN!!!
No POTS dial-peer or no direct-inward-dial on a pots dial-peer

23. Where is it best to manipulate digits for inbound calls?

24. How do you prevent H323 caller-id updates to CUCM
#voice service voip| #no supplementary-service h225-notify cid-update
No POTS dial-peer or no direct-inward-dial on a pots dial-peer
Voice register dn 1| number 4002||voice register pool 1|id mac 0022.0022.0022|type 7961ge|number 1 dn 1|dtmf-relay rtp-nte|no vad
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False

25. How do you verify where MOH is being served up from?

26. Describe the relationship between route patterns and end devices.
CUCM Service Parameters --> Call Park Reversion Timer
Route Patterns --> Route Lists --> Route Groups --> Gateways/Trunks|RPs point to Route Lists which contain one or more Route Groups which contain one or more Gateways/Trunks.
Dtmf-relay h245-alpha
Proxy Line Mode has multiple icons on the phone.|Shared Line Mode has only one.

27. How do you set the Call Park Reversion Timer?
1 ... this is not optional!
CUCM OS Administration Settings --> NTP Servers
CUCM Service Parameters --> Call Park Reversion Timer
Phone number followed by domain name.|i.e. 3006@ipxcme.com

28. When using drop-through-option What is the max number of huntgroups?
1 ... this is not optional!
In CUCM on the PRI interface of the MGCP Gateway - set the Significant Digits to 4.
#voice service voip| #no supplementary-service h225-notify cid-update
#isdn switch-type primary-ni|#network-clock-participate wic 0|#controller t1 0/0/0|#pri-group timeslots 1-3 service mgcp||#ccm-manager mgcp ccm-manager redundant-host [IP]|#ccm-manager fallback-mgcp (for srst)|#ccm-manager moh||#mgcp|#mgcp call-agent

29. What are the commands to configure SIP phones in CME?
At the CLI: utils ntp status
#interface vlan 130 (voice vlan)| #h323-gateway voip interface| #h323-gateway voip id BR2 ipaddr 10.1.6.1| #h323-gateway voip h323-id UK| #h323-gateway voip bind srcaddr 10.1.130.1

Voice register global|mode cme|source-address <IP>|max-dn <NUM>|max-pool <NUM>|tftp-path flash:/<PATH>|create profile||NOTE: You have to do a create profile every time you change the voice register pool

30. How can you confirm the MGCP GW is registered to CUCM - in IOS?
Automatically configures the MGCP GW for you.
(config)#voice register dialplan
Single Number Reach (Mobile Connect)
Sh ccm-manager

31. With the gw-priority command - does higher or lower priority take precedence?
Dtmf-relay h245-alpha
#test voice translation rule 1 <input to test>
Higher
#after-hours block pattern

32. What does rule 1 /^.*(....$)/ /1/ do?
Matches any length dialed number and truncates it to 4 digits.
Phone number followed by domain name.|i.e. 3006@ipxcme.com

(config)#isdn switch-type primary-net5|(config)#network-clock-participate wic 0||(config)#Controller e1 0/0/0|(config-controller)#pri-group timeslot 1-3 !!!Get the PRI up!!!|(config-controller)#no shut||(config)#int s0/0/0:15|(config-if)#isdn outgoin

33. In a SIP Dial Rule how do you represent a dialed * instead of it being used as a wildcard?

34. When it comes to H323 gateways - what should you always change - unless explicitly told not to?
AAR -- Used for WAN Congestion|SRST -- Used for WAN Outage
Sh ccm-manager
Allows you to transfer by only pressing the Transfer button once.
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False

35. What are the steps to configure Single Number Reach and Mobile Voice Access?
Region setting alone is not enough. You must set:|Enterprise Parameters --> Advertise G.722 Codec Disable
It matches a route pattern| Which points to a route list| Which point to a route group| Which contains a GW or Trunk|*Then it needs to match on an incoming VOIP diap-peer (incoming called -number .)
Matches any length dialed number and truncates it to 4 digits.

36. How can you tell the difference between Proxy Line Mode and Shared Line Mode by just looking at the phone?
Configure it on the route group through the route list - then it will be local to the route list.
Proxy Line Mode has multiple icons on the phone.|Shared Line Mode has only one.
Interface f0/0|no ip address|no shut||interface f0/0.10|encap dot1q 10 native --> !!! DATA VLAN !!!|ip address 10.10.100.1 255.255.255.0|interface f0/0.20|encap dot1q 20 --> !!! VOICE VLAN !!!|ip address 10.10.200.1 255.255.255.0
#int lo0|#h323-gateway voip bind srcaddr [IP]||#isdn switch-type primary-ni|#network-clock-particpate wic0||#controller t1 0/0/0|#pri-group timeslots 1-3||#int serial 0/0/0:23|#isdn outgoing display-ie|#isdn b-chan selection order [use opposite of wh

37. 'If you want to make changes to any softkeys where do you do it?
8kb/s
Device Settings --> Softkey Template|Copy a template and make your changes.|Then apply to the device.
#test voice translation rule 1 <input to test>
Precede the # with a > ... so 9011*>#

38. When a device is roaming to a different site How does it get the Roaming Sensitive Settings from the Device Pool?
CM SERVICEABILITY TOOL --> SERVICE ACTIVATION --> Check all - then uncheck CMI and Security Services and activate.
1st the Subnet is recognized. (Device Mobility Info)|Then different Physical Locations are compared.
Apply voice-class codec
Voice register global|mode cme|source-address <IP>|max-dn <NUM>|max-pool <NUM>|tftp-path flash:/<PATH>|create profile||NOTE: You have to do a create profile every time you change the voice register pool

39. Does CUCM support RSVP natively?
Assign a logout-profile to the ephone.
...
h225 timeout tcp establish 3 within a h323 voice class||#voice class h323 1|#h225 timeout tcp establish 3
No it invokes the RSVP call agent on the IOS Router via SCCP message. i.e. use a Software MTP.

40. If you need terminate and reoriginate all calls through the CUBE - what do you need to do.
You need dial-peers and to allow h323 to h323 communication.||voice service voip| allow-connections h323 to h323
Ssh to the CUCM the phone is registered to|show perf query class 'Cisco MOH Device'
Phone number followed by domain name.|i.e. 3006@ipxcme.com
+ [CC 1-3 digits] [National Number max 15 minus CC digits]

41. What are the base telephony-service commands for CME?
Telephony service|ip source-address 10.10.110.2|max-dn <NUM>|max-ephone <NUM>|create cnf-files
Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.
#interface vlan 130 (voice vlan)| #h323-gateway voip interface| #h323-gateway voip id BR2 ipaddr 10.1.6.1| #h323-gateway voip h323-id UK| #h323-gateway voip bind srcaddr 10.1.130.1
Bandwidth

42. What is the Service Parameter to allow the phone that is picking ip to auto answer?
Matches any length dialed number and truncates it to 4 digits.
Reroute when there is a WAN Outage.
Enable MOH on the CME.||#telephony service|#moh music-on-hold.au
Auto Call Pickup Enabled

43. How do you test a Voice Translation Rule?
#test voice translation rule 1 <input to test>
Service Parameter --> Block OffNet To OffNet Transfer --> True
Gatekeeper|endpoint resource-threshold|endpoint max-calls h323id gk-trunk_2 1||The bandwidth command only allows restriction between zones
Call forwarding between voip to voip (when CUBE is in play)

44. If you can't use a tech-prefix or default tech-prefix how do you get around the fact that CUCM does not register it's endpoint to GK?
Max-dn|max-ephone|ip source-address
You may be running into a CSA bug. Disable CSA in CUCM by:|SSH to CUCM|utils csa disable
Use the alias static configuration||alias static (IP of CUCM) gkid (GK ID) gateway voip ras (IP of CUCM) e164 (dn) e164 (dn) e164 (dn)
Gw-priority command||#gatekeeper| #zone prefix CUCM 2... gw-priority 10 US_Trunk_2| #zone prefix CUCM 2... gw-priority 5 US_Trunk_1

45. Name 2 commands to verify RSVP functionality.
Sh ip rsvp reservation||sh sccp connections
Access Port Method||interface range fa0/1 - 3|switchport voice vlan 20|switchport access vlan 10|spanning-tree portfast
(config)#isdn switch-type primary-ni|(config)#network-clock-participate wic 0||(config)#controller t1 0/0/0|(config-controller)#pri-group timeslots 1-3|(config-controller)#no shut||(config)#voice service voip|(conf-voi-serv)#sip|(conf-serv-sip)#bind
#int lo0|#h323-gateway voip bind srcaddr [IP]||#isdn switch-type primary-ni|#network-clock-particpate wic0||#controller t1 0/0/0|#pri-group timeslots 1-3||#int serial 0/0/0:23|#isdn outgoing display-ie|#isdn b-chan selection order [use opposite of wh

46. What are the commands to set up the PRI?

47. What is SIP URI?
Phone number followed by domain name.|i.e. 3006@ipxcme.com
Call-manager-fallback or telephony-service mode SRST
Service Parameters --> Mobile Voice Access Number
Mobile Connect

48. How do you support multiple codecs on a dialpeer?
SIP Route Pattern over a SIP Trunk.
Outbound dial-peers
Dtmf-relay h245-alpha
Apply voice-class codec

49. How do you see multicast packets being sent?
Telephony-service|no auto-reg-ephone|max-ephones <NUM>|max-dn <NUM> no-reg|ip source-address <IP> port 2000|create cnf-files
Debug ephone moh
In CUCM - configure CFUR to point to it's E164 number.
Sends the Calling Name.

50. Calls coming from CUCM to PSTN need what?
Push as much digit manipulation to the router as possible - so you can re-use it for SRST.
Outbound dial-peers
SIP Dial Rules
Route Patterns --> Route Lists --> Route Groups --> Gateways/Trunks|RPs point to Route Lists which contain one or more Route Groups which contain one or more Gateways/Trunks.