Please give us more information for HKBN SIP Trunk service.If we are now using IDAP with 2751200-2751299 range, can we have SIP Trunk service using same number range as our IDAP Service?Our existing IDAP is charge at HK$841 now plus 120 for three lines porting for our main line number and two fax lines.If can use same number range in SIP Trunk, how much will be the SIP Trunk service?