Cellular Backhaul

• Background and issues

1. Cellular companies have been using T1 circuits from the local exchange carriers that are priced from $150 to $600 each per month.
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2. Most carriers use between 2 and 4 T1 circuits at each BTS to backhaul the traffic between the cell tower and the switch.
   
   
3. As carriers move to G3 data intensive services, the number of T1 circuits are going to have to increase by 200 to 400 percent, therefore increasing OPEX.
   
   
4. The long-term solution is to move to the more efficient IP Ethernet services — away from T1
   

• Why Winlink 1000 is the single best solution for Cellular Backhaul

1. The Winlink 1000 supports both T1 circuits and IP Ethernet simultaneously
   
   
2. The Winlink 1000 was designed from the start for voice traffic
   • Completely symmetrical radio frames for error free voice transmission
   • Bit Error Rate of 10-11 which is better than LEC T1 circuits
   • Patented “fast ARQ” for retransmission
   • Adjustable jitter buffer for accurate clocking of voice traffic
3. The most cost-effective solution on the planet! Most ROI business cases, including install, etc., are six months or less.