[Asterisk-Users] Routing through ENUM

[Steve Hill]

While re-setting up my Asterisk system I decided that implementing call 
routing through ENUM lookups would be a good idea.  However, I've hit a 
bit of a problem.  Given DNS records like:

*.4.4			IN	NAPTR	blah
9.8.7.6.5.4.3.2.1.4.4	IN	NAPTR	blah

The first record is there to route all numbers starting +44 via a 
particular gateway.  The second record overrides that routing for a 
specific number, which I want to route via a different gateway.  The 
problem is that it appears this stops a lookup for "1.1.1.1.1.1.1.1.1.4.4" 
from returning the wildcard record, which is a behaviour I hadn't realised 
DNS had.

Is there a way around this, short of splitting up the override and the 
wildcard domains into separate domains and doing the lookups separately?

It seems quite a short-coming of the ENUM system since I can imagine 
telephone companies wanting to put a wild card in for their (large) blocks 
of numbers but still having the ability to add more specific records (e.g. 
for number portability, etc).

-- 

  - Steve
    xmpp:steve at nexusuk.org   sip:steve at nexusuk.org   http://www.nexusuk.org/

      Servatis a periculum, servatis a maleficum - Whisper, Evanescence