With IPHost Network Monitor you can run simple snmp requests against a Nortel device in your network.
modVcsX121ToE164EscapeSignificance
mod Vcs X121 To E164 Escape Significance
This attribute specifies whether an X.121 to E.164 escape digit has significance in selecting an X.32 (analog) or an ISDN switched path. If two values are significant (the value 0 or the value 9) then yes is set to this attribute. If the value of the originally entered escape digit is not significant in routing the call then value of no is assigned to this attribute.
Back to Nortel-Magellan-Passport-SubnetInterfaceMIB MIB page.
IPHost Network monitor allows you to monitor modVcsX121ToE164EscapeSignificance on Allied Telesis device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Nortel switches right now.