Model 4520 & 4110 Series Getting Started Guide | A • Specifications |
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Voice Signalling
H.323v4
•RAS, H.225, H.245
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•Gatekeeper autodiscovery
•Alias registration
•Overlap sending
•Empty capability set (call transfer, hold)
•H.323v1 call transfer, hold
ISDN over IP (ISoIP)
•H.323 GW and GK compatible
•H.323 Annex M3
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•ISDN speech, audio and data (Fax Gr 4, UDI 64, RDI 64)
Voice Routing—Session Router
Local switching; Interface huntgroups
Routing Criteria
•Interface
•Calling/called party number
•Time of day, day of week, date
•ISDN bearer capability Number manipulation functions
•Replace numbers; Add/remove digits
•Multiple remote gateways; PLAR
IP services
IPv4 router; RIPv1, v2 (RFC 1058 and 2453)
Programmable static routes
ICMP redirect (RFC 792); Packet fragmentation
DiffServe/ToS set or queue per header bits
Pocket Policing discards excess traffic
802.1p VLAN tagging
Voice Signalling | 57 |
