Mitel 3300 - Page 58

Hardware Technical Reference Manual
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LS Trunks
Table 19: LS Trunk Signaling Protocols
AMB/AOB LS Protocol
North America (NA)
Latin America (LA)
TIA/EIA-464-C
TIA/EIA-912
United Kingdom (UK) UK Subscriber/Subsidiary Loop
United Kingdom (UK) UK Loop Start Disconnect Clear
United Kingdom (UK) and Europe (EU) CTR-21