Siemens new phone model C455ip has hit the market. PSTN and VoIP service providers use it. The most things I like is it is easy to configure six SIP accounts for VoIP. It also supports STUN.
It is nice that it configure in six SIP accounts for inbound calling is great. But you can use one handset per one outbound call. It means it is necessary to use six different handsets to use all six SIP lines. Is that fair?
