Telecom testing is an interesting niche area, and you either use expensive commercial tool solutions, or open source solutions to do testing (e.g. SIPp), but they're not always one-size-fits-all.
I was wondering if anyone has done telecom testing that involved integrating different tools (ideally not from same vendor) and/or integrate with test frameworks for keyword/data driven testing or BDD. Obviously tools like Empirix Hammer, Spirent, and SIPp don't necessarily offer these framework features for example. If anyone has done such integration work, would love to hear their experiences. A blog post of it would be awesome.