These licenses are used to enable channels on SIP trunks added to the IP Office system. When a channel is used it requires a license. Multiple licenses can be combined for the total number of channels required. Note that SIP calls may require VCM channels.
•Adds SIP Trunk Channels - 1 Channel: IPO R9 SIP TRNK 1 ADI LIC (275659)
•Compatible with IP Office R9.0+