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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 commands are needed to configure the voice register pool in CME?
System Cisco Unified CM|Uncheck the box Auto-Reg Disabled||Enterprise Parameters --> Auto Registration Phone Protocol SIP or SCCP
It's best to strip digits at the voice port.
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

2. How do you configure a SIP Trunk? (router side)
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
(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
...

3. How do you prevent toll fraud on CME?
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 ....
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.
Push as much digit manipulation to the router as possible - so you can re-use it for SRST.
Vlan database|vlan 130 name DATA|vlan 240 name PHONES|apply|exit

4. How is NTP sych setup in CUCM?
Automatically configures the MGCP GW for you.
CUCM OS Administration Settings --> NTP Servers
(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
...

5. What's the best way to do digit manipulation on an IOS gateway?
1st the Subnet is recognized. (Device Mobility Info)|Then different Physical Locations are compared.
CM SERVICEABILITY TOOL --> SERVICE ACTIVATION --> Check all - then uncheck CMI and Security Services and activate.
CUCM - Partitions and Calling Search Spaces||CME - COR Lists
voice translation-profile|and|voice translation-rule

6. Two useful troubleshooting commands for CUCME?
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.

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
sh ephone reg|and|debug voip dialpeer

7. Describe how you configure SIP URI functionality.
CUCM OS Administration Settings --> NTP Servers

CUCM - Partitions and Calling Search Spaces||CME - COR Lists
Telephony service|ip source-address 10.10.110.2|max-dn <NUM>|max-ephone <NUM>|create cnf-files

8. When do you use translate called? Translate calling?
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)
It's best to strip digits at the voice port.
Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.

9. Describe the relationship between route patterns and end devices.
Int vlan 130|ip address 10.10.101.1 255.255.255.0|int vlan 240|ip address 10.10.201.1 255.255.255.0
(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
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.

10. What does ccm-manager config server [IP]</ip> do?
Telephony service|ip source-address 10.10.110.2|max-dn <NUM>|max-ephone <NUM>|create cnf-files
Automatically configures the MGCP GW for you.
Translate called - Calls going out to the PSTN||Translate Calling - Use on calls coming in from the PSTN. To change the ANI (Caller ID)
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.

11. How do you configure an MGCP GW? (router side)
Ip domain-name ipexpert.com|network-clock-participate wic 0|isdn switch-type primary-ni||controller t1 0/0/0|pri-group timeslots 1-3 - 24 service mgcp|no shut||int serial 0/0/0:23|isdn bind-l3 ccm-manager|ccm-manager mgcp|ccm-manager redundant-host 1
#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
Phone number followed by domain name.|i.e. 3006@ipxcme.com
(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

12. How do you configure phone ports on an ESW?
In CUCM on the PRI interface of the MGCP Gateway - set the Significant Digits to 4.
Access Port Method||interface range fa0/1 - 3|switchport voice vlan 20|switchport access vlan 10|spanning-tree portfast
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
Sends the Calling Name.

13. When a CUCM device dials a number - what happens?
Bottom up - to prevent glare.
When configuring TEHO.
Enable MOH on the CME.||#telephony service|#moh music-on-hold.au
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 .)

14. How can you confirm the MGCP GW is registered to CUCM - in IOS?
Create a Route Pattern for the local site and the remote site:||RP-LOC --> PT-REM --> RL-TEHO-LOC||RP-REM --> PT-LOC --> RL-TEHO-REM
Show ccm-manager
Sh ccm-manager
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

15. In CME Where is the Calling Name derived from?
Ssh to the CUCM the phone is registered to|show perf query class 'Cisco MOH Device'
The name configuration field in ephone-dn and voice register dn
voice register pool|and|voice register dn
Uncheck it! Otherwise both H323 devices on either end wait for the other to send TCS first - and the connection will timeout.

16. What are the commands to configure SIP phones in CME?
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
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
When configuring TEHO.
Gatekeeper| security acl answerarq 1||set up an access list permit whoever you want to allow

17. 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?
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
Configure it on the route group through the route list - then it will be local to the route list.
(config)#voice register dialplan
In CUCM on the PRI interface of the MGCP Gateway - set the Significant Digits to 4.

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

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19. What does Display-IE do?
Enterprise Parameters --> Organization Top Level Domain|Enterprise Parameters --> Cluster Fully Qualified Domain Name
Sends the Calling Name.
IP Voice Media Streaming App
The Called/Calling Transformations are superceded.

20. With the gw-priority command - does higher or lower priority take precedence?
On CUCM it's identical to adding an H323 GW.
Need to Know||Anytime you have an external call - it needs to match on a route pattern.
Higher
Use IPs instead of hostnames for all CUCM servers.|ENTERPRISE PARAMETERS --> Replace all CUCM hostnames with IPs in URLs

21. How do you allow the Calling Name to be sent to the PSTN on a router?
(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
(config)#int s0/0/0:15 (this is created after you setup the PRI)|(config-if)#isdn outgoing display-ie
At the Line or Device level. -- Sometimes unpredictable performance of assigned to the device though.
Access Port Method||interface range fa0/1 - 3|switchport voice vlan 20|switchport access vlan 10|spanning-tree portfast

22. How do you change modes in voice register global?
When multiple sites use the same route pattern - do your digit manipulation on a route list.
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
Default is SRST||mode cme changes to CME|no mode cme changes back to SRST
Push as much digit manipulation to the router as possible - so you can re-use it for SRST.

23. How do you configure class of service (CoS) in CUCM? CME?
CUCM - Partitions and Calling Search Spaces||CME - COR Lists
Apply voice-class codec
Phone number followed by domain name.|i.e. 3006@ipxcme.com
To enable two-stage dialing.

24. What command is needed on a gateway for it to invoke the DSP to convert multicast MOH stream to TDM?
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
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
Ccm-manager music-on-hold
CAT IOS|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10 --> !!!DATA VLAN!!!

25. What does the Transfer On-hook Enabled Service Parameter do?
Create a Route Pattern for the local site and the remote site:||RP-LOC --> PT-REM --> RL-TEHO-LOC||RP-REM --> PT-LOC --> RL-TEHO-REM

When multiple sites use the same route pattern - do your digit manipulation on a route list.
Allows you to transfer by only pressing the Transfer button once.

26. Where can you assign the AAR Group?
Sends the Calling Name.
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
Master/Slave relationship. CUCM controls it.
At the Line or Device level. -- Sometimes unpredictable performance of assigned to the device though.

27. 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
In CUCM - configure CFUR to point to it's E164 number.
Ssh to the CUCM the phone is registered to|show perf query class 'Cisco MOH Device'
'Use before the ... so XXXX

28. 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?
(config)#voice register dialplan
Sh ccm-manager
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)
#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

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

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30. When can you not use a Standard Local Route Group?
CM SERVICEABILITY TOOL --> SERVICE ACTIVATION --> Check all - then uncheck CMI and Security Services and activate.
Debug isdn q931
When configuring TEHO.
Region setting alone is not enough. You must set:|Enterprise Parameters --> Advertise G.722 Codec Disable

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

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

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33. What is Mobile Voice Access?
sh ephone reg|and|debug voip dialpeer
When I call in from off-net to a DID number in-net ... once authenticated - your calls appear to come from the desk phone.
CUCM OS Administration Settings --> NTP Servers
h225 timeout tcp establish 3 within a h323 voice class||#voice class h323 1|#h225 timeout tcp establish 3

34. What would force you to use telephony-service to configure SRST?
(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
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)
Outbound dial-peers
1. Complicated Hunt Group|2. Need to support Calling Name|3. Need to support Call Park Call Pickup

35. What are the basic ephone-dn and ephone commands?
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
SERVICE PARAMETER> Automated Alternate Routing Enable > True
voice translation-profile|and|voice translation-rule
24kb/s

36. What is Phone NTP Reference used for?
No it invokes the RSVP call agent on the IOS Router via SCCP message. i.e. use a Software MTP.
To notify SIP Phones of NTP
#voice service voip| #no supplementary-service h225-notify cid-update
Call-manager-fallback or telephony-service mode SRST

37. What do you need to do to activate the CME GUI?
CUCM Service Parameters --> Automated Alternate Routing Enable --> True
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
Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.
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

38. How do do configure TEHO?
When multiple sites use the same route pattern - do your digit manipulation on a route list.
Service Parameters --> Mobile Voice Access Number
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
Create a Route Pattern for the local site and the remote site:||RP-LOC --> PT-REM --> RL-TEHO-LOC||RP-REM --> PT-LOC --> RL-TEHO-REM

39. When are digits stripped in a gateway?
When they are explicitly matched in a destination-pattern in a dial-peer.
Auto Call Pickup Enabled
Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.
Max-dn|max-ephone|ip source-address

40. What must you do for a BACD script to work on a CME router?
TRUE
Call forwarding between voip to voip (when CUBE is in play)
Auto Call Pickup Enabled
Enable MOH on the CME.||#telephony service|#moh music-on-hold.au

41. Privacy is enabled system-wide in CUCM by default. (T or F)
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.
#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
TRUE

42. What is the full E164 format?
#test voice translation rule 1 <input to test>
#after-hours block pattern
+ [CC 1-3 digits] [National Number max 15 minus CC digits]
Device Pool Locations

43. How do you ensure no inter-digit timeout fro SIP phones within CUCM?
CUCM Service Parameters --> Call Park Reversion Timer
SIP Dial Rules
Sends the Calling Name.
#show call active brief|#show voice call summary|#show voice call status|show dialpeer voice summary

44. How would you enable security on a GK?
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
Gatekeeper| security acl answerarq 1||set up an access list permit whoever you want to allow
Sends the Calling Name.
Apply voice-class codec

45. What does rule 1 /^.*(....$)/ /1/ do?
Matches any length dialed number and truncates it to 4 digits.
You may be running into a CSA bug. Disable CSA in CUCM by:|SSH to CUCM|utils csa disable
SIP Dial Rules
Telephony service|ip source-address 10.10.110.2|max-dn <NUM>|max-ephone <NUM>|create cnf-files

46. A show isdn status shows TEI_ASSIGNED. What do you do to get MULTIPLE_FRAME_ESTABLISHED?
Via the voice hunt-group parallel command
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.
Re-enter the mgcp bind control and mgcp bind media commands.

47. If you need terminate and reoriginate all calls through the CUBE - what do you need to do.
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
Sh ccm-manager
In CUCM - configure CFUR to point to it's E164 number.
You need dial-peers and to allow h323 to h323 communication.||voice service voip| allow-connections h323 to h323

48. What is call-forward pattern used for?
Auto Call Pickup Enabled
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)
AAR -- Used for WAN Congestion|SRST -- Used for WAN Outage

49. How do you allow H323 calls to be preserved should the primary H323 GW fail?
1 ... this is not optional!
On CUCM it's identical to adding an H323 GW.
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
Assign SIP Dial Rules

50. How would you verify that DHCP is working in IOS?
Ccm-manager music-on-hold
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
1. Enable it.|2. Create AAR Group|3. Create CSS-AAR and apply at device level.|4. Apply AAR Group at line level.
(config)#sh cdp neigh detail