... modes are available: E1+IP mode, IP-only mode. The transmission capacity of different business under E1+IP can be adjusted ... of multi-modes network and evolution network.Applications The backhaul transmission among base stations for GSM, CDMA, 3G/4G; PSTN ... Provide 3.5MHz, 7MHz, 14MHz, 28MHz channel bandwidth. The maximum transmission capacity is up to 80Mbps Alterable business configuration: For E1 ...