The Grandstream WP825 is my current home phone, and will likely remain as such for the foreseeable future. If I was to acquire all of the numbers I would wish, then I will need to use the dual account feature of the phone. The WP825 supports 2 lines coming in, but only 1 outgoing line. Simply put, there is no way to select which line I wish to call from as there is with the iPhone. SIP-1 will be my Home number. This provider will provide for unlimited calling to US, Canada, and select 50 countries which I could not find a list with that provider. The second account will be C whereas my SIP Broker number points to this carrier. In addition, if I was to provide a SIP address, it will be C‘s SIP address that I would disclose.
This will allow me to have unlimited incoming calls with either carrier, and I will use the unlimited outgoing calling ability of V. The Home phone number will be associated with V, and I will setup the Caller ID of C as the Home‘s phone line when making an outgoing voice call. This will simplify things, and show the Home no matter which account I was to use. Again, since V is much more affordable than C for the same level of service, it just makes sense to use the dual SIP capabilities of the WP825.