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True digital sound in GSM-cards for Asterisk

 True digital sound in GSM-cards for Asterisk

New GSM-cards for Asterisk (with support for WCDMA/UMTS) are now capable of digital sound processing. This improvement provides higher quality of speech, clear sound with no interferences or noises. Technically, it means the sound from radio-module sent to the system already in digital form i.e. the sound already digitized by the module itself.

 

It is still possible to switch to analogue sound mode by sending special AT-command to each radio-module from Asterisk console. Switching to digital sound currently supported only by cards with the support of WCDMA/UMTS, but they still can be used in regular GSM-networks (without UMTS).

Quick contact


 

Contact Details

POLYGATOR (manufacturer)

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www.polygator.com
Skypepolygator

 

Dealer contacts:

UKRAINE
Elgato Communications
+380(63)797-3020 (mob)
+380(56)719-9030 (tel./fax office)

Local landlines

RUSSIA
+7(499)403-3248 (Moscow)
UK
+44(203)769-1858 (London)
USA
+1(312)3-400-898 (Chicago)

 

Compatibility Short-list

Native drivers Certified with Tested with Technologies
Asterisk
(PCI GSM Interface Card for 4/8 SIM-cards)

Elastix

SoftSwitch, IP-PBX
Asterisk
3CX
Oktell

VoIP Billing
MVTS
A2Billing
MOR

SMS software
Diafaan
Kannel
Ozeki
ActivExperts
SMS.Gate

GSM UMTS PRI(E1) SMS

SIP

Codecs
G.729 G.711 G.723 G.726 DTMF

SMS protocols
SMPP SMTP AT-commands SMS-via-SQLLite (Under Asterisk)

+ Dev by abc7