of DSP processors (DSPs), with any MIPS Software License D2 Technologies, Inc. and Maintenance Agreement August 4, 1997 CONFIDENTIAL 45 performance rating, as long as it is from the TI TMS320C54x, TMS320C55x, or TMS320C6x processor family. Fee_per_SRM = Fee_per_Port * DSPs_per_SRM * Average_Ports_per_DSP Where: Fee_per_SRM is the runtime license fee for each SRM. Fee_per_Port is on Table 1. DSPs_per_SRM is the number of DSPs on each SRM. Average_Ports_per_DSP is defined below. ----------------------------------------------------------- total quantity of processors licensed Fee_per_port ----------------------------------------------------------- 1-5,000 $2.00 ----------------------------------------------------------- 5,001 - 25,000 $1.00 ----------------------------------------------------------- 25,001 - 50,000 $0.75 ----------------------------------------------------------- 5,001 - 75,000 $0.50 ----------------------------------------------------------- > 75,000 $0.00 ----------------------------------------------------------- Table 1. Fee per port If LICENSEE commits to purchase licenses for a minimum of 10,000 processors for the first year after first customer shipments, the fee_per_port will be reduced for $1.00 for the first 5,000 processors. The SRM will provide 5 Basic Services and simple conferencing (which does not require network echo cancellation): 1. DTG -- Digital Tone Generation (static channels and outpulsing) 2. CPA -- Call Progress Analysis (with Voice Activity Detection) 3.- DRC -- DTMF Detection 4. MFR(1) -- Multifrequency Reception (1) 5. MFCR2 -- Multifrequency Reception and Transmission, Compelled R2 To determine the Average ports per DSP, the completed software will be tested in a heavily-loaded VCO/20 to determine the maximum number of ports that a single DSP processor performing each of the Basic Services can reliably satisfy. This Software License D2 Technologies, Inc. and Maintenance Agreement August 4, 1997 CONFIDENTIAL 46 maximum will be documented in Table 2 below, and will be encoded in software, to prevent a customer from exceeding it. This maximum will vary depending on the DSP processor speed, so a separate measurement will have to be done for SRMs containing faster processors. Due to system limitations, this number will never