We knew how to add a virtual phone number to classical extension PSTN, call this virtual phone number, it will be forwared to mobile phone. Today we are going to set up another SIP extension 2002 and inbound routing freecallguider-2002, then add a virtual phone number such as IPKALL to this SIP: freecallguider-2002@pbxes.org, when you call this number (IPKALL), you can dial another phone number to call. If you are interested in it, follow the steps below:
Step 1. Set up SIP trunk and outbound routing according to step 1 to step 3 of this post: How to use PBXes (2) SIP trunk for outgoing calls