what is the chipset of the voip phones ?
1) PA1688
Pa1688 is the old voip phone chipset, people use them to produce voip phone several years ago,however, the chipset supplier stop supplying with the chipset anymore.
2) AR1688
AR1688 is the replacement of the PA1688 , however, it supports SIP only.
3) Infineon
It is the most popular voip phone chipset, people use them to produce many voip phones, it supports SIP + iax or H.323+SIP, you may select the protocols from them . It is with 2 RJ45 ports, with a Router built in , it supports 2 SIP accounts and 1 IAX2 account at the same time.
4) CM5000
CM5000 voip phones are also popular, however, it is expensive and I donot think it is a good choice.
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