NEC SL1100 SIP Trunk License (2 port) - SL-IP-SIPTRK-2 LIC
Required for each SIP trunk after the first (4), which are included on the VOIP Daughter Board. Requires VOIP Daughter Board (1100111) and appropriate quantity of VoIP Channels. Maximum (32) SIP Trunks allowed per system.
Replaces 1-Port SIP Trunk License (1100080)