[asterisk-users] Different ringing tones ...

[Gordon Henderson]

This possibly isn't 100% asterisk related, but I'd like some 
opinions/feedback...

A customer wanted different ring-tones to differentiate external and 
internal calls. No biggie once I'd worked out that details - they have 
100% GXP2000 phones, so adding in the relevant SIP header and altering the 
phones to suit seems like it's going to be a solution...

But I started to look at other phones and it seems that no 2 phones have 
the same "Alert-Info" header information. (damn them!) So in-theory I 
could build up a table of the right runes to put in the SIP header for 
each phone, but what happens when I'm ringing 2 (or more) phones at once 
of different types?

As in:

   ... Dial(SIP/101&SIP/102&SIP/103,...)

If 101 is a Grandstream, and 102 is a Snom and 103 is an analogue phone on 
an ATA ...

I'm not sure if I can simply add multiple SIPAddHeader() calls before the 
Dial() or will they be ignored?

What do others use to make the phones have a different ring-tone? (Other 
than use the phones internal phone-book and match numbers which isn't what 
I want to do)

Cheers,

Gordon