More power - more flexibility - larger system expansion! Via update module for existing ES 770 IT and ES 730 IT systems. By using/replacing the module, the same performance capabilities as with an ES 730 IT plus or ES 770 IT plus are achieved! This means that the ES 730 IT plus can manage 60 users with 90 devices, and the ES 770 IT plus can manage 200 users with 120 devices (independently of the device type)! In addition to 2 network interfaces (optional network separation possible when using the ETH Plus license), the module can natively manage up to 64 IP channels (without the need for additional hardware expansion), thus representing the maximum limit of existing/possible IP modules in existing systems. Channel usage options: SIP external (SIP provider), SIP internal (SIP devices, AGFEO DECT IP), ASIP (AGFEO ST for IP interface). After the deployment of the ES 7xx upgrade kit, existing IP modules in this system can no longer be used (IP channel license transfer possible when exchanged for IP modules. Replaced modules can be used in other systems).