Service And Protocol Configuration; Voice Gateway Mode Considerations; Softswitch Modes; Dhcp Options And Voip Modes - Alcatel-Lucent 7302 Information Manual

Service and protocol configuration

Service and protocol configuration requirements are different between the voice
gateway mode and the softswitch mode.
Voice gateway mode
In the voice gateway mode, the service and protocol configuration must be manually
performed using the element management system (EMS). Voice gateway
deployments require some unique considerations during service and protocol
configuration; see Table 5-6.
Type
ONT configuration
Voice gateway configuration
File download
ONT and voice gateway MAC
configuration

Softswitch modes

There are two softswitch modes: H.248/Megaco and SIP softswitch modes. In these
modes, some configuration elements associated with VoIP provisioning can be
derived automatically from the DHCP/BRAS servers on the network. Package C, D,
and I-240W-S ONTs do not support softswitch modes.
The ONT and the softswitch trigger the ARP proxy function for individual MAC
address learning.
Table
DHCP option Function
1 IP subnet mask
3 Default IP router
6 DNS server address
(1 of 2)
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Table 5-6 Voice gateway mode considerations
5-7 describes the use of different DHCP options in the different VoIP modes.
Table 5-7 DHCP options and VoIP modes
Voice gateway
mode
Not recommended
Not recommended
Not supported
Consideration
The static IP addresses must be derived and configured
along with termination identifiers on the ONT during the
POTS provisioning time. No DHCP function is expected.
The ONT IP addresses and the termination identifiers must
be configured on the voice gateway.
The ONT is expected to use an embedded configuration for
voice gateway applications. File download is not necessary.
The embedded configuration profile is stored on the ONT
flash. ONTs are shipped from the factory with the
embedded profiles already installed. New configuration
files can be downloaded to the ONT flash via FTP.
The ONT and voice gateway MAC addresses are fixed at the
ONT and the voice gateway. The MAC addresses are
exchanged as part of the ARP.
H.248 Softswitch SIP mode 1
mode (for IPoE)
Supported Supported
Supported Supported
Not supported Supported
November 2013
5 — VoIP overview
SIP mode 2
(for IPoE)
Supported
Supported
Supported
5-21