Can you change the IMEI in the Broadmobi modem to match the IMEI of your existing spyphone?
I guess that would then force the much more important issue of: does the modem actually work on their network? Rather than making it an arbitrary up-front rejection based on a number.
I wouldn’t say that this topic is the last word on Broadmobi v. Verizon - but for now maybe ‘we’ are stuffed.
Warning: Changing the IMEI may be illegal in some circumstances in some countries. If this applies then this is not a suggestion to change the IMEI.