The phone almost certainly needs 48v - Power up the 4011 using a 48v PSU for a better chance of it working ; ) There's usually nothing special about 802.3af/ad devices that prevents them working with any kind of PoE input - so long as you have the right voltage, and right mode, it should work just fine :) Cheers! Mike. -----Original Message----- From: Public <public-bounces@talk.mikrotik.com.au> On Behalf Of Karl Auer Sent: Thursday, 18 November 2021 8:27 PM To: MikroTik Public <public@talk.mikrotik.com.au> Subject: [MT-AU Public] RB4011 and Yealink W60B Just installed an RB4011 in a client site. They had an existing Yealink W60B phone there, powered by a plug-pack. The specs on the plug pack say 600mA output. Tried plugging the phone in to the poE port (10) on the RB4011, with no success. The W60B showed no evidence of seeing power. Tried setting poe-out on the port to "forced-on", no change. The Yealink doco says it requires "IEEE 802.3af, Class 1" PoE. I can't find any such spec for the RB4011, just lots of statements that it is passive PoE. Is there a trick or should I give up? Regards, K. -- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Karl Auer (kauer@nullarbor.com.au) work +61 2 64957435 http://www.nullarbor.com.au mobile +61 428 957160 GPG fingerprint: 9FB6 C08F 91CB 5093 30EF 3E2F 8C94 EEBD 117C 4A10 Old fingerprint: CF68 0C56 EEE4 CC19 28D4 03B3 BCE0 E800 E31F 7254 _______________________________________________ Public mailing list Public@talk.mikrotik.com.au http://talk.mikrotik.com.au/mailman/listinfo/public_talk.mikrotik.com.au