PLETS is a website maintained by the Panhandle Regional Planning Commission's Criminal Justice Program which keeps a calendar of trainings for law enforcement professionals.
The Amarillo College Criminal Justice Program holds a variety of Telecommunication trainings each year targeted primarily to 9-1-1 professionals. The training includes minimum standards as set by TCLEOSE. The Amarillo College Criminal Justice department is an approved provider for the Texas Commission on Law Enforcement Officer Standards and Education (TCLEOSE).
The Texas Commission on Law Enforcement Officer Standards and Education (Commission) strives to meet its mission of ensuring a Texas where people are served by highly trained and ethical law enforcement and corrections personnel through screening, developing, monitoring resources, and setting standards.
The NCTCOG provides several levels of training for emergency telecommunicators through different types of interfaces, including TTY training. Please visit their site for more information.
Please visit this wikipedia link, as it has a rather in depth view of how 9-1-1 technically works, which will assist telecommunicators with a general understanding of the 'technical side of things.'