Review on π Improved Communication with Yealink SIP-T20 IP Phone: 2-Line HD Voice for Non-PoE Environments by Mark Taylor
Great phone for VOIP business once you get the security issues sorted out.
I bought it and very easily set it up as a SIP phone with our VOIP account. Everything was fine until a few days later I started receiving these strange calls from very strange caller ID numbers. A little research showed that by default this mode is vulnerable to random calls trying to find security flaws. I was able to download and apply the latest software update and the issue was resolved. Otherwise it is a very good phone with great sound quality. highlighted.
- VoIP
- Slightly dented
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