Hardware MTP
A hardware MTP is a resource that uses gateway-based DSPs to interconnect two G.711
streams. This is done without using the gateway CPU. This hardware-only implementation
uses a DSP resource for endpoints using the same G.711 codec but a different packetization
time. The repacketization requires a DSP resource, so it cannot be done by software
only. Examples are as follows:
■ Cisco NM-HDV2, NM-HD-1V/2V/2VE, 2800 and 3800 Series Routers
■ This hardware uses the PVDM-2 modules for providing DSPs.
■ Each DSP can provide 16 G.711 mu-law or a-law MTP sessions or 6 G.729,
G.729b, or GSM MTP sessions.
■ Cisco WS-SVC-CMM-ACT
■ This module has four DSPs that can be configured individually.
■ Each DSP can support 128 G.729, G.729b, or GSM MTP sessions or 256 G.711
mu-law or a-law MTP sessions.
■ Catalyst WS-X6608-T1 and WS-X6608-E1
■ Codec support is G.711 mu-law or a-law, G.729, G.720b, or GSM.
■ Configuration is done at the port level. Eight ports are available per module.
■ Each port configured as an MTP resource provides 24 sessions.