AltiGen business phone systems (the 500, 510, 600, 705, 710, and 720 models) connect to headsets a little differently depending on whether you're going corded, Jabra, or wireless — and the AltiGen IP 720 has a built-in feature that makes wireless remote answering unusually simple. Here's the full compatibility picture.
Quick answer
Last updated July 2026
Corded headsets for AltiGen phones
For AltiGen 500, 510, 600, 705, 710, and 720 phones, a corded Poly (Plantronics) H-Series headset connects directly through the phone's dedicated headset port using a Plantronics Polaris cable — no amplifier required. The Polaris cable is the same one used across several other phone brands, covered in our guide to identifying Plantronics QD cables.
For Jabra, any Jabra QD headset works with the Jabra GN1200 Smart Cord, which connects to the phone's headset port the same way.
Wireless headsets for AltiGen phones
For wireless, the Poly CS540 is the current recommendation — but note it connects through the phone's handset (receiver) port, not the headset port. This is a common point of confusion: on AltiGen phones, wireless headsets use a different port than corded ones.
Myth
A wireless headset connects to the same port as a corded headset on an AltiGen phone.Reality
Not on these models. Corded headsets use the dedicated headset port with a Polaris cable or GN1200 cord. Wireless headsets like the CS540 instead connect through the phone's handset (receiver) port — the jack the curly handset cord normally plugs into. Trying to plug a wireless base into the headset port won't work.(Note: older guides recommend the Plantronics CS530, which has been discontinued — the CS540 is the current equivalent and connects the same way.)
The AltiGen IP 720: built-in remote answering
The AltiGen IP 720 has a distinct advantage over the other models: it includes a built-in Plantronics Serial Bus (PSB) port with an integrated electronic hookswitch. The PSB cable ships with the phone, and once connected, a wireless headset can answer and end calls remotely with no separate handset lifter needed — a genuine convenience most phone models require extra hardware for.
Plantronics Serial Bus (PSB) — A proprietary port built into certain phones (including the AltiGen IP 720) that provides an integrated electronic hookswitch for Plantronics wireless headsets — remote call answering without a mechanical lifter or separate EHS cable. It's a phone-specific feature, not available on every AltiGen model.
For the IP 720, current wireless picks are the Poly CS540 or the Poly Savi 7310 (mono) / Savi 7320 (stereo) for dual desk-phone-and-computer connectivity. (Older guides recommend the Plantronics Savi W740, an older Savi 700-series model — the Savi 7310/7320 are the current equivalents.)
What headset works with an AltiGen phone?
For AltiGen 500/510/600/705/710/720 phones, a corded Poly H-Series headset with a Polaris cable, or a Jabra headset with a GN1200 Smart Cord, connects directly to the headset port. For wireless, the Poly CS540 connects through the phone's handset port instead.
Does a wireless headset use the same port as a corded headset on an AltiGen phone?
No. Corded headsets connect to the AltiGen phone's dedicated headset port. Wireless headsets like the Poly CS540 connect through the handset (receiver) port instead — the jack where the curly handset cord normally plugs in.
What is the PSB port on the AltiGen IP 720?
PSB (Plantronics Serial Bus) is a built-in port on the AltiGen IP 720 with an integrated electronic hookswitch, letting a Plantronics wireless headset answer and end calls remotely with no separate handset lifter required. The PSB cable ships with the phone. This feature is specific to the IP 720 model.
What replaced the Plantronics CS530 and Savi W740 for AltiGen phones?
Both the CS530 and Savi W740 are discontinued. The Poly CS540 is the current replacement for the CS530, and the Poly Savi 7310 (mono) or 7320 (stereo) are the current replacements for the Savi W740, offering dual desk-phone-and-computer connectivity.
AltiGen compatibility comes down to matching the connection type to the port — headset port for corded, handset port for wireless — and using the built-in PSB feature on the IP 720 if you have it. Browse current options on the wired and wireless headsets collections, or call our team at 877-999-3838 to confirm your exact AltiGen model.
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