Test your basic knowledge |

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 is Mobile Voice Access?
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.
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
When I call in from off-net to a DID number in-net ... once authenticated - your calls appear to come from the desk phone.

2. Which takes precedence Device Locations or Device Pool Locations?
Device Pool Locations
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

3. On an MGCP GW - if you select Top Down under Channel Selection Order - What does that mean?
Via the voice hunt-group parallel command
When multiple sites use the same route pattern - do your digit manipulation on a route list.
Top Down means that channel 1 will be the first channel used to place outgoing calls.
1 ... this is not optional!

4. 'How do you inform a SIP phone of NTP information?
System Cisco Unified CM|Uncheck the box Auto-Reg Disabled||Enterprise Parameters --> Auto Registration Phone Protocol SIP or SCCP
#after-hours block pattern
System --> Phone NTP Reference|Then Apply to System --> Date/Time Group
(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 are the commands to configure SIP phones in CME?
Enable MOH on the CME.||#telephony service|#moh music-on-hold.au
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
No POTS dial-peer or no direct-inward-dial on a pots dial-peer
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

6. How do you setup AutoRegistration in CUCM?
CM SERVICEABILITY TOOL --> SERVICE ACTIVATION --> Check all - then uncheck CMI and Security Services and activate.
Debug isdn q931
System Cisco Unified CM|Uncheck the box Auto-Reg Disabled||Enterprise Parameters --> Auto Registration Phone Protocol SIP or SCCP
In CUCM on the PRI interface of the MGCP Gateway - set the Significant Digits to 4.

7. What command is needed on a gateway for it to invoke the DSP to convert multicast MOH stream to TDM?
Ccm-manager music-on-hold
Allows you to transfer by only pressing the Transfer button once.
1. Enable it.|2. Create AAR Group|3. Create CSS-AAR and apply at device level.|4. Apply AAR Group at line level.
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

8. 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?
(config)#sh cdp neigh detail
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.
'Service Parameters --> Auto Answer Timer
voice register pool|and|voice register dn

9. What CM Service needs to be start in Serviceability for MOH to work?
IP Voice Media Streaming App
Sends every digit to CUCM in real-time with digit-analysis being handled by CUCM.
Auto Call Pickup Enabled
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. How do you configure CUBE?

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183

11. What does Display-IE do?
CAT IOS|switchport trunk encap dot1q|switchport mode trunk|switchport trunk native vlan 10 --> !!!DATA VLAN!!!
Sends the Calling Name.
The name configuration field in ephone-dn and voice register 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

12. What should you configure before entering auto qos?
SERVICE PARAMETER> Automated Alternate Routing Enable > True
In the CUCM 7.0.1 Release Notes ... search for restore.
CUCM - Partitions and Calling Search Spaces||CME - COR Lists
Bandwidth

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

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183

14. How do you change modes in voice register global?
8kb/s
Device Settings --> Softkey Template|Copy a template and make your changes.|Then apply to the device.
h225 timeout tcp establish 3 within a h323 voice class||#voice class h323 1|#h225 timeout tcp establish 3
Default is SRST||mode cme changes to CME|no mode cme changes back to SRST

15. How do you get around relying on DNS for your CUCMs?
No it invokes the RSVP call agent on the IOS Router via SCCP message. i.e. use a Software MTP.
SERVICE PARAMETER>|| Block Offnet to Offnet Transfer - Set to True
Use IPs instead of hostnames for all CUCM servers.|ENTERPRISE PARAMETERS --> Replace all CUCM hostnames with IPs in URLs
Access Port Method||interface range fa0/1 - 3|switchport voice vlan 20|switchport access vlan 10|spanning-tree portfast

16. When using drop-through-option What is the max number of huntgroups?
Yes. The media resources in the first MRG listed will be used before media resources in the second MGR listed.
1 ... this is not optional!
DDI - Digit Discard Instruction (PreDot)||Mask - most powerful (does DDI and Prefix)||Prefix - Prefixes digits|| **These three types are compounded in this order!
voice register pool|and|voice register dn

17. How do you configure AAR?
Call forwarding between voip to voip (when CUBE is in play)
Gatekeeper| security acl answerarq 1||set up an access list permit whoever you want to allow
1. Enable it.|2. Create AAR Group|3. Create CSS-AAR and apply at device level.|4. Apply AAR Group at line level.
Telephony-service|no auto-reg-ephone|max-ephones <NUM>|max-dn <NUM> no-reg|ip source-address <IP> port 2000|create cnf-files

18. In Gatekeeper CAC how do you restrict a specific endpoint?
When they are explicitly matched in a destination-pattern in a dial-peer.
Gatekeeper|endpoint resource-threshold|endpoint max-calls h323id gk-trunk_2 1||The bandwidth command only allows restriction between zones
The name configuration field in ephone-dn and voice register dn
Device Pool Locations

19. What CUCM services should you activate?
CM SERVICEABILITY TOOL --> SERVICE ACTIVATION --> Check all - then uncheck CMI and Security Services and activate.
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 -- UPTSAL||Create Your Users|Phone - set owner id|Create SIP Trunk|SIP Trunk Security Profile||Application Server|Licensing||||On CUPS||Work Left to right
Assign SIP Dial Rules

20. A show isdn status shows TEI_ASSIGNED. What do you do to get MULTIPLE_FRAME_ESTABLISHED?
sh ephone reg|and|debug voip dialpeer
Re-enter the mgcp bind control and mgcp bind media commands.
In milliseconds ... allows you to hang up cell phone then pick up at the desk phone without disconnecting the call.
Push as much digit manipulation to the router as possible - so you can re-use it for SRST.

21. How would you verify that DHCP is working in IOS?
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
(config)#sh cdp neigh detail
In CUCM - configure CFUR to point to it's E164 number.
TRUE

22. What must you do for a BACD script to work on a CME router?
At the Line or Device level. -- Sometimes unpredictable performance of assigned to the device though.
1. Complicated Hunt Group|2. Need to support Calling Name|3. Need to support Call Park Call Pickup
Default is SRST||mode cme changes to CME|no mode cme changes back to SRST
Enable MOH on the CME.||#telephony service|#moh music-on-hold.au

23. On an H323 GW - how do you adjust the timers for redundancy hunting?
Precede the # with a > ... so 9011*>#
h225 timeout tcp establish 3 within a h323 voice class||#voice class h323 1|#h225 timeout tcp establish 3
#show call active brief|#show voice call summary|#show voice call status|show dialpeer voice summary
In milliseconds ... allows you to hang up cell phone then pick up at the desk phone without disconnecting the call.

24. When setting up SIP URI where do you configure the CUCM's domain name?'
Enterprise Parameters --> Organization Top Level Domain|Enterprise Parameters --> Cluster Fully Qualified Domain Name
Mobile Connect
System --> Phone NTP Reference|Then Apply to System --> Date/Time Group
Re-enter the mgcp bind control and mgcp bind media commands.

25. On an MGCP GW - how could you see the primary and backup CUCM servers?
#show call active brief|#show voice call summary|#show voice call status|show dialpeer voice summary
Configure it on the route group through the route list - then it will be local to the route list.
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
Show ccm-manager

26. How do you place SCCP and SIP phones into a single huntgroup?
Via the voice hunt-group parallel command
Gatekeeper|endpoint resource-threshold|endpoint max-calls h323id gk-trunk_2 1||The bandwidth command only allows restriction between zones
Telephony-service|no auto-reg-ephone|max-ephones <NUM>|max-dn <NUM> no-reg|ip source-address <IP> port 2000|create cnf-files
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.

27. What are the commands to configure a T1/E1 PRI?
...
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
(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 Service Parameters --> Automated Alternate Routing Enable --> True

28. In CME Where is the Calling Name derived from?
The name configuration field in ephone-dn and voice register dn
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 .)
Call Simulator. You can use to validate path from router to the PSTN.

29. How do you support multiple codecs on a dialpeer?
Region setting alone is not enough. You must set:|Enterprise Parameters --> Advertise G.722 Codec Disable
Apply it to the ephone.
Apply voice-class codec
When multiple sites use the same route pattern - do your digit manipulation on a route list.

30. When it comes to H323 gateways - what should you always change - unless explicitly told not to?

SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
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
Telephony-service|no auto-reg-ephone|max-ephones <NUM>|max-dn <NUM> no-reg|ip source-address <IP> port 2000|create cnf-files

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

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183

32. 'If you want to make changes to any softkeys where do you do it?
voice register pool|and|voice register dn

'Service Parameters --> Auto Answer Timer
Device Settings --> Softkey Template|Copy a template and make your changes.|Then apply to the device.

33. What are two caveats to using the ccm-manager config server</ip> command?
(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
1. Enable it.|2. Create AAR Group|3. Create CSS-AAR and apply at device level.|4. Apply AAR Group at line level.
Gatekeeper| security acl answerarq 1||set up an access list permit whoever you want to allow

34. How do you configure DHCP in IOS?
Telephony service|ip source-address 10.10.110.2|max-dn <NUM>|max-ephone <NUM>|create cnf-files
(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
At the Line or Device level. -- Sometimes unpredictable performance of assigned to the device though.
(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

35. What are the steps to configure Single Number Reach and Mobile Voice Access?
Bottom up - to prevent glare.
#after-hours block pattern

Matches any length dialed number and truncates it to 4 digits.

36. What is Phone NTP Reference used for?
sh ephone reg|and|debug voip dialpeer
At the Line or Device level. -- Sometimes unpredictable performance of assigned to the device though.
To notify SIP Phones of NTP
#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

37. What would force you to use telephony-service to configure SRST?
AAR -- Used for WAN Congestion|SRST -- Used for WAN Outage
Re-enter the mgcp bind control and mgcp bind media commands.
1. Complicated Hunt Group|2. Need to support Calling Name|3. Need to support Call Park Call Pickup
1 ... this is not optional!

38. When a CUCM device dials a number - what happens?
...
Phone number followed by domain name.|i.e. 3006@ipxcme.com
SERVICE PARAMETER>|| Stop routing on unallocated number flag - Set to False|| Stop routing user busy - Set to False
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 are the 3 mandatory commands within call-manager-fallback?
Sends the Calling Name.
Max-dn|max-ephone|ip source-address
8kb/s
'Service Parameters --> Auto Answer Timer

40. When are digits stripped in a gateway?
On CUCM it's identical to adding an H323 GW.
When they are explicitly matched in a destination-pattern in a dial-peer.
Precede the # with a > ... so 9011*>#
Sh ccm-manager

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

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183

42. How do you block calls under call-manager-fallback?
#after-hours block pattern
RP affects the display on the calling phone.||RL affects What is sent to the gateway (called number).
Need to Know||Anytime you have an external call - it needs to match on a route pattern.
(config)#clock timezone|(config)#ntp server/master|(config)#sh ntp status to verify

43. How do you use the # as a string terminator within a SIP Dial Rule?
Telephony service|ip source-address 10.10.110.2|max-dn <NUM>|max-ephone <NUM>|create cnf-files
Bottom up - to prevent glare.
(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
Precede the # with a > ... so 9011*>#

44. 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
...
Put them in a route list.
Assign a logout-profile to the ephone.
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

45. On the RDP What is the CSS used for?
#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)#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
Mobile Voice Access
1. Complicated Hunt Group|2. Need to support Calling Name|3. Need to support Call Park Call Pickup

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

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183

47. What terminology translates to SRST?
Reroute when there is a WAN Outage.
#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
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
SERVICE PARAMETER>|| Block Offnet to Offnet Transfer - Set to True

48. '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
...
CUCM Service Parameters --> Call Park Reversion Timer
#voice-class h323 1|#h225 timeout tcp establish 3 (if no response within 3 seconds continue dial-peer hunting)
Gatekeeper| security acl answerarq 1||set up an access list permit whoever you want to allow

49. How do you ensure no inter-digit timeout fro SIP phones within CUCM?
1st the Subnet is recognized. (Device Mobility Info)|Then different Physical Locations are compared.
At the Line or Device level. -- Sometimes unpredictable performance of assigned to the device though.
In CUCM - configure CFUR to point to it's E164 number.
SIP Dial Rules

50. What is the Enable Enterprise Feature Access Service Parameter used for?
...
SERVICE PARAMETER> Automated Alternate Routing Enable > True
To enable two-stage dialing.
Single Number Reach (Mobile Connect)