The maximum I would consider would be (5) SPA525G2 phones and all could not be in use at the same time. I think you could probably use (4) simultaneously without issue. The constraining factor is that you are using 802.11g on the phone to connect ...
Have you considered the Cisco UC320? It will let you connect up to 12 SIP trunks and up to 24 phones.I currently have mine connected to a SIP trunk from www.vocalcloud.com. They are an ITSP and as long as you have sufficient and reliable bandwidth ...
Chris,I followed your instruction and this is the first time since I have had the UC320 that I have been able to pass callerid. The ITSP I use is VocalCloud. I know the owner and after doing some testing on his end he told me that I was not passin...
This is called a line seizing RJ21X. It is built into most fire/security alarm systems here in the United States. You can purchase these line seizing apparatus separately.
You need to get an IP from the UC320W, perhaps with the wireless, that is in the same VLAN. Set the wirless on the UC320W to hand out IP addresses for VLAN100. This just looks like a VLAN issue.You might also amend your ACL on the 5505 to allow yo...