Dear Sir, We have requirement of following products on regular basis:- 1. Protocol Interface converter with 4E1 to Ethernet with SNMP option. 2. Protocol Interface converter E1 to Ethernet (10/100 mbps) with LCD display and SNMP also. 3. Interface converter STM1 Optical to STM1 Electrical. 4. 4E1/8E1/16E1/32E1/63E1 to Optical STM1 Mux. 5. Interface converter STM1 to Ethernet. 6. Protocol Converter E1 to Ethernet with routing. 7. E1 optical Modem upto 120 K.M. 8. 4E1/8E1/16E1 PDH Optical Mux. Vendors having any product is requested to sending product details prices etc. so that we can further discuss. Look forward to hear from you soon. Kind Regards : harish Harish Gupta Director ANDA Telecom Pvt. Ltd. Mobile : +91 9350257173