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CCIE Voice Test

Instructions:

Answer 50 questions in 15 minutes.
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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 can you not use a Standard Local Route Group?
Gatekeeper|endpoint resource-threshold|endpoint max-calls h323id gk-trunk_2 1||The bandwidth command only allows restriction between zones
When configuring TEHO.
The name configuration field in ephone-dn and voice register dn
It's best to strip digits at the voice port.

2. 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.
+ [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
No it invokes the RSVP call agent on the IOS Router via SCCP message. i.e. use a Software MTP.

3. What are the commands to configure SIP phones in CME?
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
(config)#voice register dialplan
Service Parameters --> Mobile Voice Access Number
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

4. What CM Service needs to be start in Serviceability for MOH to work?
1 ... this is not optional!
RP affects the display on the calling phone.||RL affects What is sent to the gateway (called number).
IP Voice Media Streaming App
Bottom up - to prevent glare.

5. How do you block calls under call-manager-fallback?
IP Voice Media Streaming App
24kb/s
#after-hours block pattern
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.

6. In CME Where is the Calling Name derived from?
#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
Assign a logout-profile to the ephone.
The name configuration field in ephone-dn and voice register dn
Outbound dial-peers

7. How do you place SCCP and SIP phones into a single huntgroup?
Via the voice hunt-group parallel command
IP Voice Media Streaming App
Matches any length dialed number and truncates it to 4 digits.
'Service Parameters --> Auto Answer Timer

8. How do you maintain 4-digit dialing to phones that are running in an SRST scenario (WAN outage)?

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9. How much bandwidth does a G.729 call including layer 3 require?
24kb/s
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
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
Bottom up - to prevent glare.

10. What are the commands to configure SRST in fallback?
No it invokes the RSVP call agent on the IOS Router via SCCP message. i.e. use a Software MTP.
#call-manager-fallback|#ip source-address (IP)|#max-ephone 4|max-dn 8|Configure a refernce in CUCM
Single Number Reach (Mobile Connect)
#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

11. How do you prevent toll fraud on 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
On CUCM it's identical to adding an H323 GW.
SERVICE PARAMETER>|| Block Offnet to Offnet Transfer - Set to True
#voice-class h323 1|#h225 timeout tcp establish 3 (if no response within 3 seconds continue dial-peer hunting)

12. With the gw-priority command - does higher or lower priority take precedence?
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)
Configure it on the route group through the route list - then it will be local to the route list.
Higher
Master/Slave relationship. CUCM controls it.

13. How do you configure SRST?
(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
'Service Parameters --> Auto Answer Timer
Call-manager-fallback or telephony-service mode SRST
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

14. When it comes to H323 gateways - what should you always change - unless explicitly told not to?
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.
'Use before the ... so XXXX
Translate called - Calls going out to the PSTN||Translate Calling - Use on calls coming in from the PSTN. To change the ANI (Caller ID)
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False

15. How do you change modes in voice register global?
Default is SRST||mode cme changes to CME|no mode cme changes back to SRST
Access Port Method||interface range fa0/1 - 3|switchport voice vlan 20|switchport access vlan 10|spanning-tree portfast
Precede the # with a > ... so 9011*>#
(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

16. What terminology translates to AAR?
Bottom up - to prevent glare.
Need to Know||Anytime you have an external call - it needs to match on a route pattern.
System --> Phone NTP Reference|Then Apply to System --> Date/Time Group
Reroute when here is WAN congestion.

17. How do you enable AAR?
SERVICE PARAMETER>|| Block Offnet to Offnet Transfer - Set to True
SERVICE PARAMETER> Automated Alternate Routing Enable > True
Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.
Translate called - Calls going out to the PSTN||Translate Calling - Use on calls coming in from the PSTN. To change the ANI (Caller ID)

18. What does Display-IE do?
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
Sends the Calling Name.

Call-manager-fallback or telephony-service mode SRST

19. When setting up SIP URI where do you configure the CUCM's domain name?'
Service Parameters --> Mobile Voice Access Number
Enterprise Parameters --> Organization Top Level Domain|Enterprise Parameters --> Cluster Fully Qualified Domain Name
CAT IOS|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10 --> !!!DATA VLAN!!!
'Use before the ... so XXXX

20. Name 2 commands to verify RSVP functionality.
CUCM OS Administration Settings --> NTP Servers
Max-dn|max-ephone|ip source-address
Sh ip rsvp reservation||sh sccp connections
Telephony service|ip source-address 10.10.110.2|max-dn <NUM>|max-ephone <NUM>|create cnf-files

21. 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
Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.
Assign a logout-profile to the ephone.
voice translation-profile|and|voice translation-rule

22. Describe how you configure SIP URI functionality.
At the CLI: utils ntp status

Enable MOH on the CME.||#telephony service|#moh music-on-hold.au
CUCM - Partitions and Calling Search Spaces||CME - COR Lists

23. An MGCP gateway serving as an SRST router requires what?
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
...
Redundant dial plan. One on CUCM and one on the routers via dial-peers.
Assign SIP Dial Rules

24. How do you configure SIP phones to be able to call other SIP phones via SIP URI?
#after-hours block pattern
When configuring TEHO.
SIP Route Pattern over a SIP Trunk.
#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

25. What does the Transfer On-hook Enabled Service Parameter do?
TRUE
Allows you to transfer by only pressing the Transfer button once.
SERVICE PARAMETER> Automated Alternate Routing Enable > True
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

26. How do you allow the Calling Name to be sent to the PSTN on a router?

(config)#int s0/0/0:15 (this is created after you setup the PRI)|(config-if)#isdn outgoing display-ie
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
Apply voice-class codec

27. How would you enable security on a GK?
The name configuration field in ephone-dn and voice register dn
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
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

28. How do you set up redundancy on outbound dial-peers on an H323 gateway?
Debug isdn q931
#voice-class h323 1|#h225 timeout tcp establish 3 (if no response within 3 seconds continue dial-peer hunting)
System Cisco Unified CM|Uncheck the box Auto-Reg Disabled||Enterprise Parameters --> Auto Registration Phone Protocol SIP or SCCP
Precede the # with a > ... so 9011*>#

29. When using drop-through-option What is the max number of huntgroups?
Device Settings --> Softkey Template|Copy a template and make your changes.|Then apply to the device.
Configure it on the route group through the route list - then it will be local to the route list.
#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
1 ... this is not optional!

30. How do you use the # as a string terminator within a SIP Dial Rule?
Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.
Need to Know||Anytime you have an external call - it needs to match on a route pattern.
'Service Parameters --> Auto Answer Timer
Precede the # with a > ... so 9011*>#

31. How can you tell the difference between Proxy Line Mode and Shared Line Mode by just looking at the phone?
Matches any length dialed number and truncates it to 4 digits.
Proxy Line Mode has multiple icons on the phone.|Shared Line Mode has only one.
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
Enable MOH on the CME.||#telephony service|#moh music-on-hold.au

32. How can you confirm the MGCP GW is registered to CUCM - in IOS?
(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
System --> Phone NTP Reference|Then Apply to System --> Date/Time Group
(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
Sh ccm-manager

33. How do you configure class of service (CoS) in CUCM? CME?
Need to Know||Anytime you have an external call - it needs to match on a route pattern.
Phone number followed by domain name.|i.e. 3006@ipxcme.com
CUCM - Partitions and Calling Search Spaces||CME - COR Lists
Service Parameters --> Mobile Voice Access Number

34. When a CUCM device dials a number - what happens?
Enable MOH on the CME.||#telephony service|#moh music-on-hold.au
(config)#voice register dialplan
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.
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 .)

35. On a gatekeeper trunk - how do you ensure the Sub is used as primary and Pub as backup?
Proxy Line Mode has multiple icons on the phone.|Shared Line Mode has only one.
Gw-priority command||#gatekeeper| #zone prefix CUCM 2... gw-priority 10 US_Trunk_2| #zone prefix CUCM 2... gw-priority 5 US_Trunk_1
#voice-class h323 1|#h225 timeout tcp establish 3 (if no response within 3 seconds continue dial-peer hunting)
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

36. '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
When they are explicitly matched in a destination-pattern in a dial-peer.
...
Bottom up - to prevent glare.
Phone number followed by domain name.|i.e. 3006@ipxcme.com

37. What dtmf-relay type do you use for an H323 GW?
Dtmf-relay h245-alpha
SERVICE PARAMETER>|| Block Offnet to Offnet Transfer - Set to True
(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
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

38. How do you configure DHCP in IOS?
(config)#sh cdp neigh detail
(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
CAT IOS|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10 --> !!!DATA VLAN!!!
8kb/s

39. What's the difference between AAR and SRST?
SERVICE PARAMETER> Automated Alternate Routing Enable > True
No it invokes the RSVP call agent on the IOS Router via SCCP message. i.e. use a Software MTP.
AAR -- Used for WAN Congestion|SRST -- Used for WAN Outage
Re-enter the mgcp bind control and mgcp bind media commands.

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

41. What is the bit rate for a G.729 call excluding layer 2?
Ssh to the CUCM the phone is registered to|show perf query class 'Cisco MOH Device'
...
Put them in a route list.
8kb/s

42. How do you block an external call from being transferred back out to the pstn by an internal user?
Service Parameter --> Block OffNet To OffNet Transfer --> True
In CUCM - configure CFUR to point to it's E164 number.

Gatekeeper| security acl answerarq 1||set up an access list permit whoever you want to allow

43. How do you configure CUBE?

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44. How do you prevent toll fraud on CME?
Device Pool Locations
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 ....
#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
Translate called - Calls going out to the PSTN||Translate Calling - Use on calls coming in from the PSTN. To change the ANI (Caller ID)

45. How do you create a trunk on the router side?
Telephony-service|no auto-reg-ephone|max-ephones <NUM>|max-dn <NUM> no-reg|ip source-address <IP> port 2000|create cnf-files
(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
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)
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

46. If you need terminate and reoriginate all calls through the CUBE - what do you need to do.
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.
Ccm-manager music-on-hold
You need dial-peers and to allow h323 to h323 communication.||voice service voip| allow-connections h323 to h323
Put them in a route list.

47. How do you see the details of calls coming in and out of the PRI?
Precede the # with a > ... so 9011*>#
Debug isdn q931
(config)#sh cdp neigh detail
System Cisco Unified CM|Uncheck the box Auto-Reg Disabled||Enterprise Parameters --> Auto Registration Phone Protocol SIP or SCCP

48. How do you convert a full PRI 9config'd by ccm-manager config server) back to a Fractional PRI?
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 ....
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 .)
'Service Parameters --> Auto Answer Timer

49. What are the commands to configure a T1/E1 PRI?
Telephony service|ip source-address 10.10.110.2|max-dn <NUM>|max-ephone <NUM>|create cnf-files
IP Voice Media Streaming App
#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
(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

50. What does rule 1 /^.*(....$)/ /1/ do?
Matches any length dialed number and truncates it to 4 digits.
Apply it to the ephone.
Assign SIP Dial Rules
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False