Grandstream Networks UCM6 series User manual

Grandstream Networks, Inc.
UCM6XXX Busy Camp-on Guide

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UCM6XXX Busy Camp-on Guide
Table of Contents
OVERVIEW.....................................................................................................................3
CALL COMPLETION FEATURE CODE .........................................................................4
CALL COMPLETION FOR LOCAL EXTENSIONS ........................................................5
Configuration............................................................................................................................................5
Sample Application ..................................................................................................................................6
CALL COMPLETION FOR TRUNKS .............................................................................7
Configuration............................................................................................................................................7
Using SIP Register Trunks ...............................................................................................................7
Using SIP Peer Trunks .....................................................................................................................9
Sample Application ................................................................................................................................12
Table of Figures
Figure 1: Call Completion Feature Code ......................................................................................................4
Figure 2: Enable Call Completion for Extensions .........................................................................................5
Figure 3: Enable Call Completion for SIP Register Trunk.............................................................................7
Figure 4: Create SIP Register Trunk.............................................................................................................8
Figure 5: SIP Register Trunk Status..............................................................................................................9
Figure 6: Create SIP Peer Trunk.................................................................................................................10
Figure 7: Edit SIP Peer Trunk .....................................................................................................................10
Figure 8: SIP Peer Trunk – Advanced Settings...........................................................................................11
Figure 9: SIP Peer Trunk Status .................................................................................................................11

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UCM6XXX Busy Camp-on Guide
OVERVIEW
Busy Camp-on/Call Completion is a feature where the PBX will camp on a called party and inform the caller as
soon as the called party becomes available given the previous attempted call cannot be successfully
established.
When trying to reach an extension which is already busy, the caller could request the UCM6XXX to camp on
the called party by dialing the call completion request code. Then the UCM6XXX will give a call to the caller as
soon as the called party becomes available. By answering the call from UCM6XXX, a call from the caller to the
called party will be initiated automatically by the UCM6XXX to complete the call.
The call completion can be configured for individual extensions as well as SIP register/peer trunks.
•When call completion is configured for individual extensions, the specific extension will get notified to
complete the call when the called extension is available.
•When call completion is configured for SIP register/peer trunks, any extension in one UCM6XXX will get
notified to complete the call when the called extension in the peer UCM6XXX is available if the extension
has call completion configured too.
This document describes how to configure call completion for the above two applications.
Note: UCM6XXX series include UCM6100 series (UCM6102, UCM6104, UCM6108 and UCM6116), UCM6200
series (UCM6202, UCM6204 and UCM6208) and UCM6510.

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CALL COMPLETION FEATURE CODE
The feature code for call completion request can be modified on web GUI  Call Features  Feature Codes
page. The default setting is *11 for “Call Completion Request” and *12 for “Call Completion Cancel”.
Figure 1: Call Completion Feature Code

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UCM6XXX Busy Camp-on Guide
CALL COMPLETION FOR LOCAL EXTENSIONS
Configuration
1. On UCM6XXX web GUI  Extensions/Trunk  Extensions page, create or edit an extension (e.g., 2000)
to bring up the dialog in below figure.
2. Click on “Features” tab and make sure the following are configured:
•“Enable CC”: selected
•“CC Mode”: set to “Normal”
Figure 2: Enable Call Completion for Extensions
3. Configure the above steps to another extension 2001 if extension 2001 is the party that will be on the call
with extension 2000.

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Sample Application
Assuming “user A” is using UCM6XXX extension 2000, and user B is using UCM6XXX extension 2001. Both
extensions have “Enable CC” selected and “CC Mode” set to “Normal” as mentioned above.
1. Extension 2000 calls extension 2001.
2. The call fails to be established due to the following possible reasons:
a) Extension 2001 is busy, e.g., talking on the phone.
b) Extension 2001 rejects the call or the call goes to timeout.
3. At this time, extension 2000 dials “Call Completion Request” code (*11 by default) to activate camp on
feature. Please note “Enable CC” option must be selected and “CC Mode” must be set to “Normal” for both
extensions 2000 and 2001. Otherwise the user is not allowed to dial the call completion request code.
4. Once extension 2001 becomes available, UCM6XXX will call extension 2000. Extension 2000 has to
answer the call. The following conditions for extension 2001 are considered as available:
a) If extension 2001 was busy when 2000 called 2001, 1001 is considered as available after the previously
active call hangs up.
b) If extension 2001 rejected the call or the call went to timeout when 2000 called 2001, 2001 is considered
as available after a new call is completed. This means extension 2001 has to initiate a new call or answer
another incoming call and the new call hangs up. Otherwise, the UCM6XXX will not know whether extension
2001 is available or not.
5. A call will be initiated to extension 2001 to establish call between 2000 and 2001.

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UCM6XXX Busy Camp-on Guide
CALL COMPLETION FOR TRUNKS
Configuration
Call completion for trunks is applicable to SIP register trunks and SIP peer trunks. Two UCM6XXXs must be
first configured with SIP trunks to each other. For the sake of the following illustration, we name the two
UCM6XXXs involved in this example UCM1 with IP address 192.168.6.133 and UCM2 with IP address
192.168.5.143 respectively.
Using SIP Register Trunks
1. On UCM1, create extension 2000. This extension is for UCM2 to register SIP trunk to UCM1.
2. On UCM1 extension 2000, go to “Features” tab and make sure the following are configured:
•“Enable CC”: selected
•“CC Mode”: set to “For Trunk”
Figure 3: Enable Call Completion for SIP Register Trunk

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3. Make the same configuration for extension 5000 on UCM2. This extension is for UCM1 to register SIP trunk
on UCM2.
4. On UCM1, create a SIP register trunk and register to the extension 5000 on UCM2. This can be done by
clicking on web GUI  Extension/Trunk  VoIP Trunks. The following figure
shows the configuration for new SIP trunk on UCM1.
Figure 4: Create SIP Register Trunk
•Type: Select “Register SIP Trunk”.
•Host Name: Enter the IP address of the UCM to register to.
•Username: The extension number on the UCM to register to.
•AuthID: Same as Username.
•Password: The password of the extension number on the UCM to register to.
5. Similar to step 4, on UCM2, create a SIP register trunk and register to the extension 6000 on UCM1.
6. Check the registration status of the trunks on web GUISystem Status  Dashboard. If configured
successfully, the status for the trunk should show as “Registered”.

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Figure 5: SIP Register Trunk Status
7. Configure inbound and outbound rules on two UCMs to make sure the extensions on UCM1 can reach the
extensions on UCM2 through the SIP register trunk and vice versa.
8. For the extensions on both UCM6XXX that you would like to use call completion, go to the UCM6XXX web
GUI Extension / Trunk  Extensions page, create or edit extension with the following configured in
“Features” tab:
•“Enable CC”: selected
•“CC Mode”: set to “Normal”
Now, Call Completion feature for trunks is ready to be used when making calls between the 2 UCM6XXX
extensions.
Using SIP Peer Trunks
1. On UCM1, create a SIP peer trunk with UCM2. This can be done by clicking on web
GUI  Extension/Trunk  VoIP Trunks. The following figure shows the configuration for new SIP trunk
on UCM1.

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Figure 6: Create SIP Peer Trunk
•Type: Select “Register SIP Trunk”.
•Host Name: Enter the IP address of the UCM to register to.
1.1. After saving, press edit button as shown in figure below:
Figure 7: Edit SIP Peer Trunk
1.2. Access “Advanced Settings” tab and set following options:
•“Enable Heartbeat Detection”: selected. This setting is optional, if activated it will help to check the
status of the trunk.
•“Enable CC”: selected.

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Figure 8: SIP Peer Trunk – Advanced Settings
2. Similar to step 1, on UCM2, create a SIP peer trunk with UCM1.
3. Check the trunks status on web GUI  System Status  Dashboard. If configured successfully, the
status for the trunk should show as “Reachable”.
Figure 9: SIP Peer Trunk Status
4. Configure inbound and outbound rules on two UCMs to make sure the extensions on UCM1 can reach the
extensions on UCM2 through the SIP peer trunk and vice versa.

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5. For the extensions on both UCM6XXX that you would like to use call completion, go to the UCM6XXX web
GUI  Extension/Trunk  Extensions page, create or edit extension with the following configured in
“Features” tab:
•“Enable CC”: selected
•“CC Mode”: set to “Normal”
Now, Call Completion feature for trunks is ready to be used when making calls between the 2 UCM6XXX
extensions.
Sample Application
After the above configuration, assuming user A is using extension 1005 on UCM1 and user B is using extension
5001 on UCM2.
1. Extension 1005 on UCM1 calls extension 5001 on UCM2.
2. The call fails to be established due to the following possible reasons:
a) Extension 5001 is busy, e.g., talking on the phone.
b) Extension 5001 rejects the call or the call goes to timeout.
3. At this time, extension 1005 dials “Call Completion Request” code (*11 by default) to activate camp on
feature. Please make sure “Enable CC” option is enabled and “CC Mode” is set to “Normal” for both
extension 1005 and extension 5001. Otherwise, the user is not allowed to dial the call completion request
code.
6. Once extension 5001 becomes available, UCM6XXX will call extension 1005. Extension 1005 has to
answer the call. The following conditions for extension 5001 are considered as available.
a) If extension 5001 was busy when 1005 called 5001, 5001 is considered as available after the previously
active call hangs up.
b) If extension 5001 rejected the call or the call went to timeout when 1005 called 5001, 5001 is considered
as available after a new call is completed. This means extension 5001 has to initiate a new call or answer
another incoming call and the new call hangs up. Otherwise the UCM6XXX will not know whether extension
5001 is available or not.
7. A call will be initiated to extension 1005 to establish call between 1005 and 5001.
* Asterisk is a Registered Trademark of Digium, Inc.