Letter No. Date Description Policy No. Hyp.No. 2004/Tele/WL/2/Misc.       22.05.2007 Guidelines for utilization of Walkie-Talkie/VHF sets on Indian Railways.     No. 88/Tele/WE/2/Misc. 17.05.1988 Walkie-Talkie Sets in ARTs - List of Standard Equipment.   VHF-08 (DM-11)  No. 2002/Tele/WE/1/WT 14.10.2003 Provision of 25W VHF sets on stations.- BG Single Line, MG Single Line & Double Line and Mixed 2-line sections RB  Tele 11/2003 VHF-07 No. 2002/Tele/WE/1/WT 13.08.2003 Standardization of frequency for 25W VHF sets provided at stations and 5W Walkie-Talkie sets provided to Drivers and Guards. RB  Tele 10/2003 VHF-06 No. 2000/Tele/AR/7 12.05.2003 Provision of 5 Watt Walkie-Talkie & 25 Watt VHF seta in ARTs of Divisional HQrs RB  Tele 6/2003 VHF-05 (DM-07) No. 93/Tele/WE/3 Vol.1 28.03.2001 Provision of 25W VHF sets on stations.- BG Double and Multiple Line sections   VHF-04 No.93/Tele/WE/3 Vol. I 13.10.1999 Frequency for Driver & Guard Communication.- 161.150 MHz   VHF-03 D.ONo. 93/Tele/WE/3 17.12.1998 Provision of Walkie-Talkie sets between Driver and Guard.-All trains; Passenger & Goods.   VHF-02 D.O No. 93/Tele/WE/3 15.01.1998 Provision of Walkie-Talkie sets between Driver and Guard. - All passenger trains on A & B routes   VHF-01