Linking protocol eSSLv2

Warning! Essl v2 protocol introduced with version 6.40 is not compatible with the previous version Essl (do not work together, equally). Therefore, all PBXs in the system must be linked Essl v1 or Essl or v2.

Linking PBX’s with usage of ESSL2 (extended Smart Slican Link v2) protocol allows to connect Slican PBX’s in one system with joint internal numeration. Protocol uses SIP signalling elements to exchange informations between PBX’s.