Description
Same as [wcj_order_checkout_field field_id=”billing_phone”].
Accessible through:
- [wcj_order_billing_phone]
Tested on 
WooCommerce 5.3.0 and 
WordPress 5.7.2
WooCommerce 5.3.0 and WordPress 5.7.2[wcj_order_billing_phone]
Display billing phone