| Product | GnuGk Version | Tester | Comment |
| Samsung GW 3200 (SMG3200V2.2:020307) | 2.0 | ash@sanet.ru | OK |
| Samsung Ubigate 2016 | 2.2.5 | smy@cbkn.net | OK, configured as endpoint & gateway |
| Samsung Ubigate 3026 | 2.2.5 | smy@cbkn.net | OK, configured as endpoint & gateway |
| Siemens LP5100 / Optipoint 300 | 2.0 beta 4 | frenault@linkeo.com | OK |
| Siemens Optipoint 400 | 2.0.2 | michael@labuschk.de | OK |
| SJLabs SJPhone 1.10.187c | 2.0.5 | kido@cafe.tg | OK |
| Smith Micro Internet CommSuite 2.0 17 | 0.17 | jan@willamowius.de | OK |
| Snom100 / 1.15e | 2.0.3 | bermudez@mmdesa.com | OK |
| SoftRadio SRG-110 | 2.0 | support@internettelecom.biz | OK |
| Sonus-GSX9000 V05.00.12 R000 | 2.0.3 | nirs@m-wise.com | OK, configured as endpoint |
| Sony PCS 1P | 2.0.6 | fsetien@comitas.es | OK |
| Sony PCS 11P | 2.0.6 | fsetien@comitas.es | OK |
| Sony PCS 1600 | 2.0.3 | gnugk@deroode.net | OK |
| Sorenson EnVision 2.2 | 1.0 | jan@willamowius.de | OK |
| SunForum 3.2 | 2.0.5 | kaenel@switch.ch | OK |
| SwissVoice IP-10s | 2.0.5 | cuk@cuk.nu | OK |
| Swyx Server 4.30 | 2.0.8 | roberto.piola@gruppoih.it | OK, see config notes |
| SystemBase DialGate-2040 FXS / FXO | 2.2.0 | yskim@sysbas.com | OK |
| SystemBase DialGate-2042 | 2.2.0 | yskim@sysbas.com | OK |
| SystemBase DialGate-2160 | 2.2.0 | yskim@sysbas.com | OK |
| Tandberg ISDN Gateway | 2.2.1 | sean.obrien@heanet.ie | OK |
| Tandberg 150 MXP | 2.0.8 | love.jordan@cbsc.ic.gc.ca | OK |
| Tandberg 500 | 2.0 | k.stoeckigt@rzg.mpg.de | OK |
| Tandberg 770 MXP / F4.1 | 2.0.8 | love.jordan@cbsc.ic.gc.ca | OK |
| Tandberg 880 / E5.2 | 2.0.8 | love.jordan@cbsc.ic.gc.ca | OK |
| Tandberg 990MXP | 2.2.3 | joerg.fruecht@dresdnerkleinwort.com | OK |
| Tandberg 1000 | 2.0 | koen.peeters@want2cu.net | OK |
| Tandberg 1000 Wireless B7.1 | 2.0.5 | kaenel@switch.ch | OK |
| Tandberg 2500 / B4.3 PAL | 2.0.4 | vladimir.lavrov@desy.de | OK |
| Tandberg 6000 MXP / F4.1 | 2.0.8 | love.jordan@cbsc.ic.gc.ca | OK |
| Techwell TMG1108 Gateway | 2.0.4 | daniel65@163.net | OK |
| Tecom IP2005 IP-phone 1.19.006 | 2.0.5 | Tony.Friar@NewKinetics.com | OK |
| TEK DigiTel V-Server / software 3.0 | 1.0 | hsong@tekdigitel.com | OK |
| TelecomChinaSourcing EP301 | 2.0.8 | tech@telecomchinasourcing.com | OK |
| Telefonik iPhone / version 2.1.0 | 2.0.3 | dennis.white@telefonik.com | OK |
| Teles iGate | 2.2.2 | msuhail@msn.com | OK |
| Telesey CPVA500 | 2.0.3 | vmarco@hotmail.com | OK |
| Teliann Teliphone 2000 | 2.0.3 | jason@zzz.com | OK |
| Teliann 3100 (OS 4.1) | 2.0.5 | jason@zzz.com | OK |
| Telimax 202 | 2.0 | support@internettelecom.biz | OK |
| Tiger 560 USB IP phone | 2.0 beta 4 | jfuentes@neo-st.com | OK |
| Totalfon102 Gateway 2 FXS ports | 2.2.1 | jdela@linko.ws | OK |
| UOL IP8008 V1.05 | 2.0.3 | franklin@servistron.com | OK |
| VCON Cruiser 150 and 384 | 1.0 pre 8 | asterx@netposta.net | OK |
| VCON Escort 25PRO | 1.0 pre 8 | marcm@asti.dost.gov.ph | OK |
| VCON Vigo Professional | 2.0.5 | bahamid@idf.inserm.fr | OK |
| VCON vPoint 5.1 Service Pack 1 | 2.0.5 | kaenel@switch.ch | OK |
| VCON vPoint HD 8.0 | 2.2.7 | jan@willamowius.de | OK |
| Vegastream Vega50 BRI gateway | 2.0.2 | jzev@enec.gr,stratis@enec.gr | OK |
| Veraz softswitch | 2.2.4 | msuhail@msn.com | OK |
| Vida iPhone E00 | 2.0.8 | dsinghal@hotwireindia.com | OK |
| Vierling Ecotel Voip | 2.2.2 | msuhail@msn.com | OK |
| VIG IPPhone / PSTN-IP Gateway | 2.0 | marco@hkservice.com | OK |
| Vive ipphone iAloha! USB | 2.0 | m.bruni@mail.anywarenet.it | OK |
| ViVophone 3.2 Build: 2002/7/25 | 2.0.2 | thomasj@eworld.hu | OK |
| Vizufon/GPV4000i | 2.0.2 | jamie.carl@salientnetworks.com.au | OK |
| Vizufon/CIP-4500 | 2.0.5 | leslie@cnstec.com | OK |
| VocaBox IPGW-300 | 2.2.1 | dsinghal@hotwireindia.com | OK |
| VocalTec VG2000 | 2.0.3 | nirs@m-wise.com | OK, configured as endpoint |
| Vocord iX-01 | 2.0.2 | jimmyz@mail.ru | OK, gateway and station |
| Voicetronix OpenLine4 | 2.0.5 | giosif@ase.ro | OK, using OpenH323 PSTNGW as gateway |
| VoIPLab IVR | 2.2.5 | cristian.seva@voiplab.com | OK |
| Web i-Phone WSP-201 | 2.0.1 | omega@bigpond.net.au | OK |
| WebBriefing 1.0.0 beta 2 | 0.18 pre 2 | jan@willamowius.de | OK |
| Welltech Callmanager | 2.0.2 | sitemaster_2000@hotmail.com | OK |
| Welltech FXS-02 | 2.0.2 | sitemaster_2000@hotmail.com | OK |
| Welltech LANPhone 101 | 2.0.6 | gk@gwni.net | OK |
| Welltech Wellgate 3502 | 2.2.1 | prashant@ownmail.com | OK |
| Welltech Wellgate 3702 | 2.0.0 | syboy2000yulc@sina.com | OK |
| Welltech Wellgate 3802 FXO | 2.0.8 | grafffu@yahoo.com | OK, "flash -clean" when you change from p2p to Gkmode |
| Welltech Wellgate 3804 FXO | 2.2.1 | k0l0s0s@yahoo.com | OK |
| Welltech Wellgate 5200 T1/E1 Digital GW | 2.0 | support@internettelecom.biz | OK, with or without prefixes |
| WuChuan HOP 1001/1002/1003 IP Phone | 2.2.1 | webmaster@wireless-mytil.net | OK |
| Yate 0.8.5 | 2.2.0 | biba2@k.ro | OK, as gateway |
| Yoda VG 100TA | 2.0.8 | cristian.bullokles@voiplab.com | OK |
| Yoda VG 100R / 200R / 400 / 400R | 2.0.8 | yoda@itelekom.pl | OK |
| Yoda VP 110 | 2.0.8 | yoda@itelekom.pl | OK |
| Yuxin IP Phone YWH100 | 2.0.8 | steen@ing-steen.se | OK, must have firmware >= 1.27 |
