[ADD] VoIP: DIDWW config

closes odoo/documentation#14588

X-original-commit: 01f3e1aed1
Signed-off-by: Felicia Kuan (feku) <feku@odoo.com>
Signed-off-by: Jessica Rogers (jero) <jero@odoo.com>

content/applications/productivity/voip.rst

@@ -123,6 +123,7 @@ VoIP workflows
 
    voip/onsip
    voip/axivox
+   voip/didww
    voip/voip_widget
    voip/devices_integrations
    voip/sales_calls

content/applications/productivity/voip/didww.rst

@@ -0,0 +1,84 @@
+================================
+VoIP services in Odoo with DIDWW
+================================
+
+*DIDWW* is a global *VoIP* and SIP trunking provider. An active account with DIDWW is required to
+use this service.
+
+Before creating an account with DIDWW, make sure that the company's location and the applicable
+regions are supported by DIDWW's services.
+
+DIDWW setup
+===========
+
+After verifying country coverage and avaiabilty, create an account with `DIDWW
+<https://www.didww.com/>`_. Then navigate to the `DIDWW Dashboard
+<https://my.didww.com/#/dashboard>`_.
+
+To transfer existing numbers from an existing telephone network servicer provider, follow the steps
+outlined on the `DIDWW website <https://doc.didww.com/phone-numbers/number-porting/index.html>`_.
+
+Purchase new numbers
+--------------------
+
+To puchase new phone numbers, click :guilabel:`Buy Numbers` in the dashboard, then follow the
+instructions to complete the purchase.
+
+When buying a new number, it **must** support both inbound calls and Local CLI.
+
+.. image:: didww/didww-purchase-numbers.png
+   :alt: The purchase dashboard in DIDWW.
+
+Enable phone.systems
+--------------------
+
+Next, click :guilabel:`Cloud Phone System` in the dashboard sidebar. Then, click :guilabel:`Launch
+admin UI`.
+
+.. important::
+   The *phone.systems PBX* feature is an extra paid service in DIDWW, and may require additional
+   fees.
+
+To create a new user, click :guilabel:`Users`, click the plus sign, then enter the necessary
+information.
+
+.. image:: didww/add-user.png
+   :alt: The add a new user screen in DIDWW.
+
+Click :guilabel:`Contact Methods`, then click the plus sign to add a new *SIP Device Route*.
+
+Configure or add the following parameters:
+
+- :guilabel:`Allowed Codecs`: `OPUS`, `PCMU`, `PCMA`, `telephone-event`, `g722`, `g729`.
+- :guilabel:`Allowed media types`: `SRTP-DTLS`
+- :guilabel:`Default media type`: `STRP-DTLS`
+- :guilabel:`Transport protocol`: `UDP`, `TCP`, `WSS`, `TLS`
+
+.. image:: didww/sip-device-route.png
+   :alt: The settings for a new contact method in DIDWW.
+
+.. tip::
+   If no phone number available from drop-down selection in *Inbound and Outbound DID/Caller ID*
+   selection, the :guilabel:`Inbounch voice trunk` needs to be modified. Navigate to the dashboard,
+   then click :guilabel:`My Numbers`. Scroll to :guilabel:`Configuration`.In the :guilabel:`Inbound
+   voice trunk` field, select :guilabel:`phone.systems`.
+
+Odoo setup
+==========
+
+In *Odoo*, navigate to :menuselection:`Settings app --> Integrations --> VoIP --> Manage Providers`.
+Click :guilabel:`New`.
+
+Enter the name, `DIDWW`, then update the :guilabel:`WebSocket` field with `wss://sip.phone.systems`.
+Under :guilabel:`PBX Server IP`, enter `sip.phone.systems`.
+
+.. image:: didww/new-provider.png
+   :alt: The VoIP providers page in Odoo.
+
+To configure a user's VoIP provider, click the user avatar in the top-right of the database, then
+click :guilabel:`My Profile`. Click into the :guilabel:`VoIP` tab, then under the :guilabel:`Voip
+Provider` field, select :guilabel:`DIDWW`. Finally, enter the :guilabel:`Voip Username` and
+:guilabel:`Voip Secret`, then save.
+
+.. image:: didww/odoo-credentials.png
+   :alt: DIDWW provider, username, and secret credentials entered.