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The IMS subsystem is a critical factor in the deployment of next-generation services with VoLTE being the first major IMS-related application rolled out on a large scale.
The IMS subsystem is unfamiliar to many of those charged with developing IMS/VoLTE-capable LTE User Equipment (UE) and can represent a substantial challenge. Spirent’s free reference poster provides a complete list of SIP protocol information (Mandatory SIP Headers, SIP Codes and SIP Methods) and includes a procedural flow for VoLTE call establishment.
You can request your free poster using the form on this page and we will mail you a copy.
