Tender for Replacement Of Old And Worn-out Analog Railway Telephone Exchanges With New Ip Based Exchanges At 9 Locations ( Rtgh, Cur, Sdlp, Hsr, Bnw, Lgh, Sog, Hmh & Divisional Exchange At Bkn) Over Bkn Division. (using Asterisk Software) in Bikaner - Rajasthan

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