Distinctive Ring Tone on SPA504g

[TomBarker]

Anyone know how I can make the Cisco SPA504G give a different ringtone on incoming calls so that I can distinguish between internal and external calls?

Thanks

 

[leejor]

This is the only information that I recall seeing on the subject. Seeing as this is over 3 years old, I have to assume that there have been no updates to the way this feature works. Obviously, the set involved has to support this.

http://www.3cx.com/blog/voip-howto/caller-id-processing-distinctive-ringing-alert-info/