1. Annex Service Description Corporate 20212. Annex Contact Corporate 20213. Annex SLA Corporate 20214. Annex NDA Corporate 20215. Delivery Notification 2 Signature(BG-ENG)5.1. Delivery Notification Corporate 20216.Annex Service Order Form 1st order Corporate EVPL 20216.1. Annex Service Order Form 1st order Corporate IP 2021|7.Bulgartel Telecommunication Services Contract Corporate 2021