Slican ITS PABX

ITS-0206: 2 FXO ports, 6 FXS ports, 2 VoIP accounts, 1 VoIP subscriber, G.711 only.

 ADSP-BF536 BlackFin DSP, 400MHz
Looks like IP0x clone (https://www.rowetel.com/?page_id=440).\

 ST1S10 buck regulator

PEF3201 - 2 channel codec + SLIC
3 pieces = 6 FXS ports

 A25L020 serial FLASH - for configuration?

 Si3019 and Si3050 in FXO circuit
https://www.rowetel.com/ucasterisk/downloads/fxo-0.31.pdf

 A43L4616 - 256Mbit SDRAM
K9F2G08U0B 2Gb SLC FLASH

 IP101A Ethernet transceiver

 CP152S - programmable transient voltage suppressor for SLIC protection

ZX5T955G transistor