Align products and add sip/pbx product.

Remove any unused/legacy product definitions.
Add sipaccount and pbxaccount products.
Update billing mappings to use sipaccount product if none is set.

db_scripts/diff/15005.down

@@ -0,0 +1,13 @@
+USE billing;
+
+SET AUTOCOMMIT=0;
+
+SELECT id INTO @sip_id FROM billing_mappings WHERE class = 'sipaccount';
+UPDATE billing_mappings SET product_id = NULL WHERE product_id = @sip_id;
+
+SELECT id INTO @pbx_id FROM billing_mappings WHERE class = 'pbxaccount';
+UPDATE billing_mappings SET product_id = NULL WHERE product_id = @pbx_id;
+
+DELETE FROM products WHERE class IN ('sipaccount', 'pbxaccount');
+
+COMMIT;

db_scripts/diff/15005.up

@@ -0,0 +1,15 @@
+USE billing;
+
+SET AUTOCOMMIT=0;
+
+ALTER TABLE products CHANGE COLUMN class class ENUM('sippeering', 'pstnpeering', 'reseller', 'sipaccount', 'pbxaccount') NOT NULL;
+
+INSERT INTO products VALUES
+  (NULL, NULL, 'sipaccount', 'SIP_ACCOUNT', 'Basic SIP Account', 1, NULL, NULL, NULL);
+SELECT LAST_INSERT_ID() INTO @sip_id;
+UPDATE billing_mappings SET product_id = @sip_id WHERE product_id IS NULL;
+
+INSERT INTO products VALUES
+  (NULL, NULL, 'pbxaccount', 'PBX_ACCOUNT', 'Cloud PBX Account', 1, NULL, NULL, NULL);
+
+COMMIT;