asterisk@xxxxxxxxx writes: > Is it possible to set the format of the CallerID, national or > International on outgoing calls per call? In chan_ss7, there is some code to handle this. Check isup_phonenum_check() in l4isup.c and decode_isup_phonenum() in isup.c (chan_ss7 version 0.9, file names may differ in earlier versions). Basically, if the number starts with "+" or "00", it will be interpreted as an international number, and be encoded appropriately as international. Likewise, chan_ss7 will report callerid to Asterisk with leading "00" for a number encoded as international. About setting national/international nature on a link (as opposed to an isup encoded number), I'm not sure. Hope this helps, - Kristian.