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How can I ensure extension mobility users always use local gateway for all outbound calls when roaming between sites with the same EM profile.

rohit.dalvi11
Level 1
Level 1

How can I ensure extension mobility users always use local gateway for all outbound calls when roaming between sites with the same EM profile. We cannot give CSS to the local device as we need to restrict any calling from the phone unless user logs into the phone. Is there any way to achieve the same. Thanks

2 Replies 2

Vivek Batra
VIP Alumni
VIP Alumni

Since standard local route group is identified from device pool which is assigned to device and not linked with EM/Device profile, you will have to use device level CSS to ensure local gateway is always used.

To take care of other requirement that no outgoing call should be allowed when user is not login, you can use logout profile with dummy DN and on that DN, assign Line Level CSS which restricts all outgoing call.

- Vivek

Manish Gogna
Cisco Employee
Cisco Employee

Hi Rohit,

When configuring EM, you configure a CSS as part of the user’s profile parameters. But when a user logs into a phone, the profile CSS is applied by the system to the line level while preserving the physical phone’s CSS at the phone level. Therefore, it is possible to have different permission sets as you log into different phones, as the phone-level CSS may differ by phone.

In order to properly preserve a user’s call permissions in a mobile environment, the recommended approach is to apply a restrictive (blocking) CSS at the line level (which follows the user), while applying a permissive CSS at the physical phone level, simply pointing all calls to the appropriate gateway or trunk.

When a CSS is applied at both the line and phone level, the CUCM will check the call against the line-level CSS first. If the partition of the called number is not in the line-level CSS, then the system will check the phone-level CSS. If neither CSS contains the called partition, then the call will fail.

More details here

https://supportforums.cisco.com/document/32251/cucm-7x-dial-plan-design-using-local-route-group

Manish

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