Hi MKB,
Just wanted to let you know I've combined hotvoip and telbo with my Anveo and xxsim account! Thanks for all your information as this is both a robust and cheap setup. My setup is now.
- 1 US number (at Anveo capable of receiving call and sms)
- 2 XXsim mobile numbers with extra US number attached
- 2 VOIP accounts and mobileVOIP app
For call:
- Incoming calls are transfered via one hotvoip account (7cmp) and to one included US number of xxsim directly
- The hotvoip account forwards to the other xxsim number directly.
- In this way I have both the hotvoip price and the security of a direct connection with our second phone.
- Outgoing I can use mobileVOIP with callback to xxsim directly or xxsim, depending of the availabilty of a dataconnection. In this way I can even dial out and use the calledID of my main account.
For sms:
- Incoming sms messages are posted to my own sms-message gateway script * which uses a telbo account and if that fails the anveo account.
- In this way I have both the telbo price and the security of a robust backup connection with anveo
* Build this using a free mailgun-account and some hours of php programming. Not only to process incoming sms messages but also to process incoming notifications of new voice messages and so.
Conclusion: I'm setup to leave for our trip

One minor improvement point is to select a backup sim provider in case our xxsims gets stolen or don't work.