TENDER NO. KP1/9A.2/OT/044/ICT/20-21 FOR SUPPORT AND MAINTENANCE CONTRACT FOR IP-PBX AND KENYA POWER CONTACT CENTRE ADDENDUM NO.1 - TENDER NO. KP1/9A.2/OT/044/ICT/20-21 FOR SUPPORT AND MAINTENANCE CONTRACT FOR IP-PBX AND KENYA POWER CONTACT CENTRE TENDER NO. KP1/9A.2/OT/044/ICT/20-21 FOR SUPPORT AND MAINTENANCE CONTRACT FOR IP-PBX AND KENYA POWER CONTACT CENTRE