EX20 works with AT840/AT840P as extension module in which way the IP Phone could monitor extensions' status.
Work with AT840/AT840P
20 programmable keys
Powered by IP phone directly
Double color LED indicator
Supports BLF, Speed Dail, DND, Directory, Redail, Call Transfer, Call Forward, Call History
Maximum 2 EX20 to work with AT640 at the same time.
Important Notice :
1, All pictures are impression drawing. Please confirm with us in advance rather than paying directly.
2,We only sell totally original new products with factory seal and cares.
3,Free remote technical support is provide.(Please book 2 China working days in advance)
4, There is no goods return/change/refund provide unless quality problems. No product feasibility testing supported, the buyer should know what you need and the functions well.
5,Please advise us if your receive parcel with damaged packing and/or defective products within 3 days after signing on the way bill.
6, The shipping price is only for reference, please do confirm with us before paying. We won’t take any responsibility for your custom’s tax, insurance fee, import duties and other surcharges.
