Earlier quoted context omitted.
CLID is trivially spoofed; indeed there are CRM vendors that will do that for your sales force. Telco should fix CLID.
The problem is that "Telco" hasn't existed (at least in the USA) since divestiture of Bell System. Tariffed services include access to the PSTN as in terms of trunk lines (esp. PRIs), which allow end users to control call appearance including specification of the originating Directory Number (DN) that is passed in the SS7 call setup message (ISUP). It is even easier with SIP trunks. This is a problem similar to DNS s…
Re: Coca-Cola Disconnects Voice Mail at Headquarters
#111Telco (FSVO "telco") may well not be able to fix CLID, broken as it may be - they can replace it for all the good it does. But it's always aggravated me that they can provide ANI to 8xx customers. Way different service I'll grant.