The NGCP provides a web panel for end users (CSC panel) to maintain their subscriber accounts, which is running on https://<ce-ip>. Every subscriber can log in there, change subscriber feature settings, view their call lists, retrieve voicemail messages and trigger calls using the click-to-dial feature.

5.1.1. Login Procedure

To log into the CSC panel, the end user has to provide his full web username (e.g. user1@1.2.3.4) and the web password defined in Section 4.3, “Creating Subscribers”. Once logged in, he can change his web password in the Account section. This will NOT change his SIP password, so if you control the end user devices, you can auto-provision the SIP password into the device and keep it secret, and just hand over the web password to the customer. This way, the end user will only be able to place calls with this auto-provisioned device and not with an arbitrary soft-phone, but can nonetheless manage his account via the CSC panel.

	You can simplify the login procedure for one SIP domain in such a way that users in this domain only need to pass the user part (e.g. user1) as a username instead of the full web username to log in by setting the parameter www_csc→site_domain in the config file /etc/ngcp-config/config.yml to the corresponding domain (e.g. 1.2.3.4) and execute ngcpcfg apply.

Vertical Service Codes (VSC) are codes a user can dial on his phone to provision specific features for his subscriber account. The format is *<code>*<value> to activate a specific feature, and #<code> or #<code># to deactivate it. The code parameter is a two-digit code, e.g. 72. The value parameter is the value being set for the corresponding feature.

	The value user input is normalized using the Rewrite Rules Sets assigned to domain as described in Section 4.5, “Configuring Rewrite Rule Sets”.

By default, the following codes are configured for setting features. The examples below assume that there is a domain rewrite rule normalizing the number format 0<ac><sn> to <cc><ac><sn> using 43 as country code.

You can change any of the codes (but not the format) in /etc/ngcp-config/config.yml in the section sems→vsc. After the changes, execute ngcpcfg apply.

	If you have the EMTAs under your control, make sure that the specified VSCs don’t overlap with EMTA-internal VSCs, because the VSC calls must be sent to the NGCP via SIP like normal telephone calls.

NGCP offers several ways to access the Voicemail box.

The CSC panel allows your users to listen to voicemail messages from the web browser, delete them and call back the user who left the voice message. User can setup voicemail forwarding to the external email and the PIN code needed to access the voicebox from any telephone also from the CSC panel.

To manage the voice messages from SIP phone: simply dial internal voicemail access number 2000.

To change the access number: look for the parameter voicemail_number in /etc/ngcp-config/config.yml in the section sems→vsc. After the changes, execute ngcpcfg apply.

To let the callers leave a voice message when user is not available he should enable Call Forward to Voicebox. The Call Forward can be provisioned from the CSC panel as well as by dialing Call Forward VSC with the voicemail number. E.g. when parameter voicemail_number is set to 9999, a Call Forward on Not Available to the Voicebox is set if the user dials *93*9999. As a result, all calls will be redirected to the Voicebox if SIP phone is not registered.

To manage the voice messages from any phone: