I uploaded a ringtone (wav file) as the User 1 ringtone on SPA508G, and named it Custom-1. Under the ringtone menu, I can see Custom-1 and play it fine. Also, if I assign it to an extension from the phone menu and then call that extension, the phone ...

We use SPA508G phones with firmware 7.6.0, and the SIP->Caller ID Header is set to PAID-RPID-FROM. In one of the call scenarios, phone sends an INVITE, server responds with an OK message that also includes a P-Asserted-Identity.For regular non secure...

We have SPA504G phones with only Ext1 enabled. We use the other line keys to pick up parked calls in Asterisk via:fnc=sd+blf;sub=1234@proxyThis works smoothly except for one scenario:When the user presses (by mistake) one of those "unpark" line keys ...

Our ISP has set up a Cisco 2431-16fxs IAD (dual WAN) in one of our locations. It is used to connect the devices (PCs and SIP phones) on our LAN to internet (via 1st WAN port) and ISP's MPLS-based voip network (via 2nd WAN port).We have 2 LAN subnets ...