User`s guide

PassFinder AP2520 VoIP Router/Gateway Operation Manual Version 1.10 / Mar. 2002
AddPac Technology Co., Ltd. -
331 -
z As digital E1 or T1 specific command, compand-type command can be used for PCM
quantization parameter setting. Using this command, a user can change the default a-law mode
to u-law mode. (Notice: PBX peer side must be changed as u-law mode.)
router(config)# voice-port 0/0
router(config-voice-ports-0/0)# compand-type u-law
z To check the parameter setting of voice port, use the show voice port 0/0 command. If a user
uses this command, a user can see the channel parameter setting of digital E1/T1 interface
module.
5.8.5. Controller Configuration of APVI-1E1 Interface Module
z signaling mode setting (mandatory): In AP2520G/R VoIP equipments, available signaling types
are ISDN PRI, R2 and DTMF signaling types. Among the signaling types, DTMF signaling
method use the CAS signaling for channel allocation like as R2 signaling type, and use the
DTMF tone for digit transmission. The default signaling type is ISDN PRI signaling type. To
change the signaling type, a user should use the reboot command after parameter setting like
as following example.
router(config)# controller e1 0/0
router(config-controller-e1-0/0)# signaling-type r2
router# reboot
z channel group setting (mandatory): This configuration setting can be used for selecting the
voice channels among the E1 interface voice channels. Following example show the voice
channel selection configuration as a digital E1 VoIP interface module is installed slot0. The 16
th
channel configuration is ignored in channel group setting because the 16
th
channel is used as a
signaling channel.
router(config)# controller e1 0/0
router(config-controller-e1-0/0)# channel-group timeslots 1-31
If a user want to select the channel number 1,2,3,8,20, 21 as voice channels, a
following command can be used for this configuration setting.
router(config-controller-e1-0/0)# channel-group timeslots
1-3,8,20,21