Indeed, we do love our children and pets too. :-)
You've highlighted an issue that I've seen many times over for tracking devices big and small. However, PTCRB approval isn't the issue. It's the operator certification that generally causes delays and leads to added costs. PTCRB is mandatory, but if your design is reasonable, other than the costs, you shouldn't have a problem.
On the other hand, you can pass PTCRB only to find out you don't meet the operator's TRP and/or TIS requirements. (Note - Check the operator's requirements prior to PTCRB testing.) This typically requires a redesign of the antenna, which requires further PTCRB testing. This can be a vicious cycle, as getting the antenna performance within spec often requires many iterations, especially for small devices.
As far as getting around the requirements, some operators don't have requirements beyond PTCRB. For those that do have their own requirements, they have seen the challenges with smaller devices, but there are smaller devices that meet their specs.
I know this doesn't help you get around meeting the requirements, but I hope it gives you another perspective.
Sujeet, I am aware what the PTCRB will cover. PTCRB and further approvals are mentioned in my M2M IoT Cookbook:
Something with PTRCB is wrong. If you compare the list of tested devices with the number of devices in use, then the number of not listed devices is much bigger.Just to let you now that I own the TRP/TIS specification of AT&T and Vodafone as well.I would like to save money like all the other people that has delivered non PTCRB devices to US.