Callite is a multi-lane SOC solution to transpond 100GE or CBR100G client onto Optical Transport Network (OTN). Each lane can be configured independently. Each lane core supports mapping of CBR100G client and 100GE client. For 100GE client, the core can perform constant bit-rate (CBR) async mapping using GMP or packet mapping using GFP. With packet mapping, a bandwidth buffer is used for bandwidth management between the GFP mapper and the 100GE MAC.

The OTU4 core of Callite supports 3 levels of OH insertions and extractions : register programming, memory programming and external programming via a dedicated OH port. The gFEC function can be disabled (or removed to save area) and a custom high-gain FEC can be used. The OTU4 core supports full alarm and OH inserts and extracts as specified in ITU G.709 and ITU G.798.