After doing some MGCP (CCM 3.3.3 and vg200 Gateway) debugs i found the folloging line:
S: H/sup(addr(phone number digits))
According to rfc2705 and IETF draft 0.1 the Handset package does not have any "sup" symbol. Why CCM is using the "sup" symbol?
As far as I know, I could not find any relevance may be this is Cisco implementation of MGCP and it may be differing witrh different vendors.