[Asterisk-Users] MWI light on Cisco Phones

[Daniel Jimenez]

Hi all, I'm having sudden MWI problems. Everything else on the phone 
works fine though.

I have three Cisco 7940s.

Asterisk server is behind a firewall running NAT. (192.168.1.202/24)

Phone #1 - On the same subnet 192.168.1.250. Everything works great.
Phone #2 - On a different subnet, 192.168.2.0/24. Everything works fine 
except the MWI. It never comes on. This is over an IPSEC VPN, but it's 
still behind NAT. No port or protocol restrictions.

Phone #3 - Out on the public internet (public IP), it accesses Asterisk 
through a open hole on the firewall (5034 is open, UDP). Everything 
works great except MWI never comes on.

The firewall is a PIX firewall. The only ports open to my asterisk box 
are 22(ssh) 80(www) and UDP 5034(SIP). It appears SIP works great 
because the calls function fine.

Thanks!,
-- 
Daniel Jimenez <djimenez[at]pobox[dot]com>