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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. What are the commands to configure SIP phones in CME?
Mobile Voice Access
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
DDI - Digit Discard Instruction (PreDot)||Mask - most powerful (does DDI and Prefix)||Prefix - Prefixes digits|| **These three types are compounded in this order!
Vlan database|vlan 130 name DATA|vlan 240 name PHONES|apply|exit

2. What must you do for a BACD script to work on a CME router?
Ssh to the CUCM the phone is registered to|show perf query class 'Cisco MOH Device'
Enable MOH on the CME.||#telephony service|#moh music-on-hold.au
SERVICE PARAMETER>|| Block Offnet to Offnet Transfer - Set to True
Precede the # with a > ... so 9011*>#

3. What are the commands to configure NTP in IOS?
(config)#clock timezone|(config)#ntp server/master|(config)#sh ntp status to verify
Max-dn|max-ephone|ip source-address
Gatekeeper| security acl answerarq 1||set up an access list permit whoever you want to allow
...

4. What is the Service Parameter to allow the phone that is picking ip to auto answer?
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.
You need pots dial-peers for incoming calls and you need a voip dial-peer pointing to the CUCM so the H323 GW and connect the call to those phones.
Auto Call Pickup Enabled
Assign SIP Dial Rules

5. What are the basic SCCP Commands fro telephony-service in CUCME?
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 .)
Telephony-service|no auto-reg-ephone|max-ephones <NUM>|max-dn <NUM> no-reg|ip source-address <IP> port 2000|create cnf-files
Voice register dn 1|number 3001|voice register pool 1|number 1 dn 1|id mac 001b.ac02.14de|type 7961|dtmf-relay rtp-nte|description 3214-3005 !!! PHONE BANNER !!!|codec g711u
In CUCM on the PRI interface of the MGCP Gateway - set the Significant Digits to 4.

6. Calls coming from CUCM to PSTN need what?
Assign SIP Dial Rules
Service Parameter --> Block OffNet To OffNet Transfer --> True
Use IPs instead of hostnames for all CUCM servers.|ENTERPRISE PARAMETERS --> Replace all CUCM hostnames with IPs in URLs
Outbound dial-peers

7. What command is needed on a gateway for it to invoke the DSP to convert multicast MOH stream to TDM?
The name configuration field in ephone-dn and voice register dn
Phone number followed by domain name.|i.e. 3006@ipxcme.com
h225 timeout tcp establish 3 within a h323 voice class||#voice class h323 1|#h225 timeout tcp establish 3
Ccm-manager music-on-hold

8. How do you create a trunk on the switch side?
CAT IOS|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10 --> !!!DATA VLAN!!!
voice register pool|and|voice register dn
Show ccm-manager
You may be running into a CSA bug. Disable CSA in CUCM by:|SSH to CUCM|utils csa disable

9. How do you test a Voice Translation Rule?
Automatically configures the MGCP GW for you.
1. Enable it.|2. Create AAR Group|3. Create CSS-AAR and apply at device level.|4. Apply AAR Group at line level.
#test voice translation rule 1 <input to test>
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 .)

10. Name 4 useful show commands for active calls.
(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
CUCM - Partitions and Calling Search Spaces||CME - COR Lists
#show call active brief|#show voice call summary|#show voice call status|show dialpeer voice summary
It's best to strip digits at the voice port.

11. What are the steps to integrate CUPS with CUCM?
voice register pool|and|voice register dn
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
CUCM Service Parameters --> Call Park Reversion Timer
Yes. The media resources in the first MRG listed will be used before media resources in the second MGR listed.

12. Two useful troubleshooting commands for CUCME?
voice register pool|and|voice register dn
sh ephone reg|and|debug voip dialpeer
Precede the # with a > ... so 9011*>#
(config)#ip domain-name <NAME>|(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 - 24 service mgcp|(config-controller)#no shut||(config)#interface s

13. How do you configure phone ports on a 3750?
Configure it on the route group through the route list - then it will be local to the route list.
Access Port Method||interface range fa0/1 - 3|switchport voice vlan 20|switchport access vlan 10|spanning-tree portfast
#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
Auto Call Pickup Enabled

14. What does ccm-manager config server [IP]</ip> do?
CUCM OS Administration Settings --> NTP Servers
(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
Automatically configures the MGCP GW for you.

15. What is the full E164 format?
CAT IOS|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10 --> !!!DATA VLAN!!!
Apply it to the ephone.
+ [CC 1-3 digits] [National Number max 15 minus CC digits]
#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

16. How do you configure a gateway to register with gatekeeper?
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
#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
RP affects the display on the calling phone.||RL affects What is sent to the gateway (called number).
#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

17. What is a best practice for digit manipulation - in regards to H323 GWs?
Push as much digit manipulation to the router as possible - so you can re-use it for SRST.
8kb/s
Top Down means that channel 1 will be the first channel used to place outgoing calls.
...

18. A show isdn status shows TEI_ASSIGNED. What do you do to get MULTIPLE_FRAME_ESTABLISHED?
(config)#service dhcp|(config)#no ip dhcp conflict logging|(config)#ip dhcp excluded-address <low IP> <hi IP>|(config)#ip dhcp-pool <name>|(dhcpconfig)#network <network name> </nn or mask>|(dhcpconfig)#domain-name <domain>|(dhcpconfig)#dns-server <IP
Device Settings --> Softkey Template|Copy a template and make your changes.|Then apply to the device.
Re-enter the mgcp bind control and mgcp bind media commands.
#call-manager-fallback|#ip source-address (IP)|#max-ephone 4|max-dn 8|Configure a refernce in CUCM

19. An MGCP gateway serving as an SRST router requires what?
No it invokes the RSVP call agent on the IOS Router via SCCP message. i.e. use a Software MTP.
Redundant dial plan. One on CUCM and one on the routers via dial-peers.
Call forwarding between voip to voip (when CUBE is in play)
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

20. When you make a call and it results in a secondary dial-tone - What is this a symptom of?
No POTS dial-peer or no direct-inward-dial on a pots dial-peer
Assign SIP Dial Rules
Trunk Port Method (3750 or ESW)||interface fa0/1|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10|switchport voice vlan 20|spanning-tree portfast
When multiple sites use the same route pattern - do your digit manipulation on a route list.

21. By Nov. 16 - 2010||I am happy confident and thankful that I am now a CCIE Voice Certified engineer! My technical knowledge of the Cisco UC portfolio is truly unsurpassed. I have opened up a wealth of opportunities for myself and my family and
'Use before the ... so XXXX
sh ephone reg|and|debug voip dialpeer
...
Phone number followed by domain name.|i.e. 3006@ipxcme.com

22. Describe the relationship between route patterns and end devices.
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.
No it invokes the RSVP call agent on the IOS Router via SCCP message. i.e. use a Software MTP.
Region setting alone is not enough. You must set:|Enterprise Parameters --> Advertise G.722 Codec Disable
Uncheck it! Otherwise both H323 devices on either end wait for the other to send TCS first - and the connection will timeout.

23. Where can you assign the AAR Group?
At the Line or Device level. -- Sometimes unpredictable performance of assigned to the device though.
You need pots dial-peers for incoming calls and you need a voip dial-peer pointing to the CUCM so the H323 GW and connect the call to those phones.
Telephony-service|no auto-reg-ephone|max-ephones <NUM>|max-dn <NUM> no-reg|ip source-address <IP> port 2000|create cnf-files
Device Pool Locations

24. What types of digit manipulation can you perform at the route pattern?
#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
Dial-peers
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.
DDI - Digit Discard Instruction (PreDot)||Mask - most powerful (does DDI and Prefix)||Prefix - Prefixes digits|| **These three types are compounded in this order!

25. 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.
Max-dn|max-ephone|ip source-address
1 ... this is not optional!

26. How do you enable AAR system wide?
CUCM Service Parameters --> Automated Alternate Routing Enable --> True
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
8kb/s
Put them in a route list.

27. What is call-forward pattern used for?
In milliseconds ... allows you to hang up cell phone then pick up at the desk phone without disconnecting the call.
Call forwarding between voip to voip (when CUBE is in play)
#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
Redundant dial plan. One on CUCM and one on the routers via dial-peers.

28. What does the Transfer On-hook Enabled Service Parameter do?
SIP Route Pattern over a SIP Trunk.
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.
Allows you to transfer by only pressing the Transfer button once.
System Cisco Unified CM|Uncheck the box Auto-Reg Disabled||Enterprise Parameters --> Auto Registration Phone Protocol SIP or SCCP

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

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30. What commands are needed to configure the voice register pool in CME?
Vlan database|vlan 130 name DATA|vlan 240 name PHONES|apply|exit
CAT IOS|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10 --> !!!DATA VLAN!!!
You need dial-peers and to allow h323 to h323 communication.||voice service voip| allow-connections h323 to h323
Voice register dn 1|number 3001|voice register pool 1|number 1 dn 1|id mac 001b.ac02.14de|type 7961|dtmf-relay rtp-nte|description 3214-3005 !!! PHONE BANNER !!!|codec g711u

31. How do you configure phone ports on an ESW?
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
Transfer to external is blocked by default.|To ensure only transfer to internal is allowed - make sure only the following tx pattern is under telephony-service||#telephony service| #transfer-pattern ....
Trunk Port Method (3750 or ESW)||interface fa0/1|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10|switchport voice vlan 20|spanning-tree portfast
...

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

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33. What are the commands to create vlans on an ESW?
#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
Mobile Voice Access
SERVICE PARAMETER> Automated Alternate Routing Enable > True
Vlan database|vlan 130 name DATA|vlan 240 name PHONES|apply|exit

34. How do you enable Extension Mobility for a device in CME?
Assign a logout-profile to the ephone.
In CUCM on the PRI interface of the MGCP Gateway - set the Significant Digits to 4.
(config)#isdn switch-type primary-net5 (or whatever's provided)|(config)#network-clock-participate wic 0||(config)#controller e1 0/0/0|(config-controller)#pri-group timeslot 1-3|(config-controller)#no shut||(config)#int s0/0/0:15 (this is created aft
Ssh to the CUCM the phone is registered to|show perf query class 'Cisco MOH Device'

35. What are the commands to manually configure an MGCP gateway?
'Service Parameters --> Auto Answer Timer
Allows you to transfer by only pressing the Transfer button once.
Re-enter the mgcp bind control and mgcp bind media commands.
#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

36. On an H323 GW - how do you adjust the timers for redundancy hunting?
Put them in a route list.
h225 timeout tcp establish 3 within a h323 voice class||#voice class h323 1|#h225 timeout tcp establish 3

(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

37. What are the commands to configure a SIP phone in CUCME?
Re-enter the mgcp bind control and mgcp bind media commands.
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
At the CLI: utils ntp status
Use IPs instead of hostnames for all CUCM servers.|ENTERPRISE PARAMETERS --> Replace all CUCM hostnames with IPs in URLs

38. What are the steps to configure Single Number Reach and Mobile Voice Access?
Max-dn|max-ephone|ip source-address
Automatically configures the MGCP GW for you.
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 .)

39. What do you need to do to activate the CME GUI?
Find the GUI Files - show flash | i .html|ip http server|ip http path flash:/<PATH TO FILES>||telephony service|web admin system name admin pass cisco|dn-webedit
Translate called - Calls going out to the PSTN||Translate Calling - Use on calls coming in from the PSTN. To change the ANI (Caller ID)
Automatically configures the MGCP GW for you.
Allows you to transfer by only pressing the Transfer button once.

40. If you have an H323 Gateway at a siet where the phones are controlled by CUCM - what do you need from a dial-peer perspective?
#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
You need pots dial-peers for incoming calls and you need a voip dial-peer pointing to the CUCM so the H323 GW and connect the call to those phones.
Reroute when here is WAN congestion.
1st the Subnet is recognized. (Device Mobility Info)|Then different Physical Locations are compared.

41. What is SIP URI?
Gw-priority command||#gatekeeper| #zone prefix CUCM 2... gw-priority 10 US_Trunk_2| #zone prefix CUCM 2... gw-priority 5 US_Trunk_1
Dial-peers

Phone number followed by domain name.|i.e. 3006@ipxcme.com

42. When setting up SIP URI where do you configure the CUCM's domain name?'
(config)#int s0/0/0:15 (this is created after you setup the PRI)|(config-if)#isdn outgoing display-ie
CAT IOS|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10 --> !!!DATA VLAN!!!
Enterprise Parameters --> Organization Top Level Domain|Enterprise Parameters --> Cluster Fully Qualified Domain Name
#after-hours block pattern

43. How do you prevent toll fraud on CME?
Reroute when there is a WAN Outage.
It's best to strip digits at the voice port.
CUCM OS Administration Settings --> NTP Servers
Transfer to external is blocked by default.|To ensure only transfer to internal is allowed - make sure only the following tx pattern is under telephony-service||#telephony service| #transfer-pattern ....

44. What CUCM services should you activate?
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.
On CUCM it's identical to adding an H323 GW.
Find the GUI Files - show flash | i .html|ip http server|ip http path flash:/<PATH TO FILES>||telephony service|web admin system name admin pass cisco|dn-webedit

45. How do you place SCCP and SIP phones into a single huntgroup?
Create 2 voip dial-peers - one the Sub and one to the Pub (the Pub with a preference of 1). Then create a voice class h323and set the h225 timeout value so it will hunt between the two.
Via the voice hunt-group parallel command
Find the GUI Files - show flash | i .html|ip http server|ip http path flash:/<PATH TO FILES>||telephony service|web admin system name admin pass cisco|dn-webedit
SERVICE PARAMETER > Device Name of GK0controlled Trunk That Will Use Port 1720 > US_Trunk (or whatever you're using)||> Host Name/IP of GK That Will Use RAS UDP Port 1719 > (IP of GK) ||BE SURE TO RESTART THE TRUNK in CUCM and possibly the CUCM Servi

46. Does CUCM support RSVP natively?
No it invokes the RSVP call agent on the IOS Router via SCCP message. i.e. use a Software MTP.
...

(config)#isdn switch-type primary-net5 (or whatever's provided)|(config)#network-clock-participate wic 0||(config)#controller e1 0/0/0|(config-controller)#pri-group timeslot 1-3|(config-controller)#no shut||(config)#int s0/0/0:15 (this is created aft

47. On the RDP What is the CSS used for?
Mobile Voice Access
Vlan database|vlan 130 name DATA|vlan 240 name PHONES|apply|exit
Bandwidth
Trunk Port Method (3750 or ESW)||interface fa0/1|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10|switchport voice vlan 20|spanning-tree portfast

48. How do you configure DHCP in IOS?
When I call in from off-net to a DID number in-net ... once authenticated - your calls appear to come from the desk phone.
sh ephone reg|and|debug voip dialpeer
(config)#service dhcp|(config)#no ip dhcp conflict logging|(config)#ip dhcp excluded-address <low IP> <hi IP>|(config)#ip dhcp-pool <name>|(dhcpconfig)#network <network name> </nn or mask>|(dhcpconfig)#domain-name <domain>|(dhcpconfig)#dns-server <IP
Via the voice hunt-group parallel command

49. How do you allow the Calling Name to be sent to the PSTN on a router?
...
Debug ephone moh
(config)#int s0/0/0:15 (this is created after you setup the PRI)|(config-if)#isdn outgoing display-ie
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False

50. 'If you're not getting a DHCP address from CUCM what then?
SERVICE PARAMETER>|| Block Offnet to Offnet Transfer - Set to True
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
You may be running into a CSA bug. Disable CSA in CUCM by:|SSH to CUCM|utils csa disable
(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