For configuring the expansion module, see Sound Point IP 601 Expansion Module.There are now updated models of the Sound Point IP: 301 and 501.This warning does not apply to the 60x or any future models.The Polycom phones have a large display and several programmable buttons, and all but the 30x have a very high-quality full-duplex speakerphone.These are the same price as the 300 and 500, but they have more memory to accomodate growing SIP image sizes. So far, the feature differences between the 300/500 and 301/501 are minimal, however the 300/500 may not get some of the “heavier” new features.SSL/TLS (HTTPS and FTPS) will not be supported on the 300/500, for example.In particular, the 50x has different keycaps, which makes this doubly difficult. Also, there are different part numbers for regions other than NA due to power differences.
The 7000 is a larger phone can be linked to a second unit for huge conference tables.
It is mostly the same as the 600 but with the addition of the side slide connector with power and Ir DA for the expansion console.
The expansion attendant console supports 14 additional line keys using SIP software from the 601.
Although the phone claims to support 802.3af and the Cisco POE standard (note it says “optional”), the an additional cable (see part list above) is required on these models.
This raises the list price to 5 or 5 when used in a Power over Ethernet environment; if you know you’re going to need Po E, buy the part with the Po E cable included (and no wall power brick) to save money.