I am based in the UK and have just enabled "Presentation Number (Type 3,4,5)" on an ISDN30 circuit. This should allow me to set the CLID used on outbound calls "allows your customer to decide what number is displayed as the Presentation Number for each outgoing call. The Presentation Number to be used on each call would be controlled by your customers’ PABX switch, and not set up within the BT network".
I am having problems doing this. I thought that I could set this as the calling number that I see in a Q.931 debug message for the call :
Bearer Capability i = 0x8090A3
Standard = CCITT
Transfer Capability = Speech
Transfer Mode = Circuit
Transfer Rate = 64 kbit/s
Channel ID i = 0xA98388
Exclusive, Channel 8
Calling Party Number i = 0x00A1, '[intended outbound CLI]'
Called Party Number i = 0x80, '[called number]'
However, I still see the number withheld. Am I missing something in the config for the H.323 gateway?
I am actually testing the feature with just trying to send a DDI number associated with that circuit (ultimately I want to send a non-geo)
Interestingly I am only able to present a outbound CLI at all, if I prefix the dialled number with 1470 (and in which case only the main number associated with the circuit is presented). 1470 as I understood it, was to reverse your default CLI position, ie if your default is to withhold, this would present and vice versa. However, the carrier tells me CLI presentation is enabled as per option described earlier.
Prefixing the dialled number with 1470 should always cause BT to withold your calling number.
My suspicion here is your numbering plan and type - which are currently both set to unknown on both calling and called number. Dredging up from my memory, I once had a similar issue and I had to set these to "National" and "ISDN" via a translation rule on my gateway.