Yealink Model #s EHS 40 is compatible with: SIP VP59, T58A, T57W, T53W, T54W, T53, T48S, T46S, T42S, T41S
Please Note: If an expansion module has been connected to the SIP- T58A, T57W, T54W, T53W, or T43 IP phone, you can connect the EHS40 to the expansion module
Leitner: Grab the adapter box, and the Jabra Y-cord (this y cord has the same exact ends on each side. 2 RJ45 and 2 RJ9 connections - one on each end)
What is in the box: Yealink adapter box that has a USB cord coming out of it, 1 Sennheiser Y-cord, 1 Plantronics Y-cord, and 1 Jabra Y-cord.
1) Find the double Y-cord, the side where one click tab is facing up, and the one on the adjacent cord is facing down is going to be going into the headset base. The big one in the "AUX" jack and the smaller one next to it in the Headset jack.
2) Connect other end of the y-cord, with the click tabs on the same side, into the 2 available slots in the Yealink adapter box
3) Plug the USB cord coming out of the adapter box into the USB port in the phone
4) Compat DHSG and 1 (both settings located underneath the headset base)
5)Test & if this does not work, resync headset
If you can't get it to work with the above orientation, try this!
We are still working out which way to set up is best. If the connections above won't give you remote answering, then try switching the cords from the headset to the EHS40. In short, unplug the cords in the AUX and phone jack in the back of the headset base, as well as in the EHS40 box, then switch them around. So, the cords that were in the EHS40 box will now be in the headset base, and vice versa. Try it out!
Does not immediately give ring detection. To get it to work correctly, someone (usually IT, or phone provider) will need to get to the web portal and do the following:
Please go to phone web portal > Features > Audio > Ringer Device for Headset, then choose Use Headset & Speaker. The below picture for your reference.