[asterisk-users] OT: 3rd party SMS service?

[Philip Prindeville]

I'm currently getting SIP trunking from my PSTN provider, but they don't 
quite grok the whole "any-service/any-device" philosophy...

I'm wondering if it's possible to get SIP voice carriage from one 
provider, but have SMS associated with the same phone numbers being 
provided by another carrier?

Or does SMS and the "single source of truth" that the GTT provides 
forbid delegation of services?

-Philip