Topic: SOLVED: Polycom ip320 & Siemens C450 - a couple of issues (EDITED)

[d6hq]

We bought the phone from Voipon.co.uk and to be fair we haven't as yet asked them the direct question. That is today's question.

Research suggests that there are major differences between an S450 and a C450/460. The S450 (now discontinued) is a SME product whereas the C450/460 is aimed more at consumers. The C460 is the phone we actually have (although the web server reports the base station as C450).

The C450/460 is a dual line product -1 x PSTN and 1 x SIP

[gippsweb]

I know this is an old thread but the only way I can get call transfer to work from my C470 is #extnumber. We were told to use the R key then extension number but the R key doesn't seem to do anything on mine...

[SARK devs]

C470 not sold in UK.  I spoke with the UK disti and they told me that they believe the C470 to be a C475 but without the on-board answering machine.  They also said that it should be able to do SIP transfer but that Siemens (or Gigaset as the new company is now called) change the specs for different countries so you would need to speak with your in-country Gigaset Disti.

Best

S

[d6hq]

I got rid of the C450/460 (used it elsewhere) and replaced with a C475 and yes it will and does do SIP transfers to other SIP phones which was the issue I had. To do so you press INT (puts the caller on hold) then dial the extension and press SEND the green key. Should simply switch the call to the desired extension.