7841 has different ringtone for internal / external calls

[RAustin70]

So a Customer Just blew my small mind.  Our Site consists mainly of 7841 devices running sip78xx.11-7-1-17, all calls come into and leave our site over ISR4k's to PSTN

I did NOT know that if a call is made internally, it is a different ringtone than if a call comes in from PSTN!!

My 8865 device does not do this.  Is anyone aware of the setting that allows this?  I'm not seeing anything online about this 'feature'.

[R0g22]

What is the call agent/ call control ? AFAIK this is not possible on CUCM but can be done on CME. Are you sure your user is not confusing a ringback with a ring tone ?

[R0g22]

To add, if the user has two different lines used for internal and PSTN calls, you can do that that through Distinctive Ringlist XML but not for a single line.

[RAustin70]

Nope, same DN, running CUCM 11.5.1.11900-26

I also thought this was something wanted, but never made possible.  I've tested it on about 4 7841 devices so far and they all do it.  if internal user 3303992 calls the phone (3304990) rings one way, but if I call from my cell phone it has a shorter, more rapid tone on the 7841.  Maybe I will record it and post it up to show what I mean.

[Mohammed al Baqari]

You need to run some debugs for PSTN calls on ISR4K to see if you are getting local ringback or early-media. I can see this happening if you are getting early-media for PSTN calls. In this case, local calls will get ringback from CUCM ANN while PSTN calls will get ringback telco which makes it different.

[RAustin70]

Ah-Ha!! Yes!  I have recently made some adjustmentsto our system relating to Early Media.  I will look into that and get back to you