User manual

8820IP Phone User Manual_ SIP (V1.44)
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value is 60 Sec.
set service type X
Enable/disable the prepaid and service system .choose the repaid
server provider. Parameter x ranged from 0 through 15:
0: common: disable repaid card or specially system ;
1: use huawei’s system;
2: use ZTE’s system;
3: use harbour’s system;
4: use utstarcom’s system;
5:use uptech system;
6: use keimen’s system;
7: use meidaring’s service;
8: use italkBB service;
9: use stanaphone service;
10: use net2phone SIP service;
11: use fwd(freeworlddialup) service;
12: use inphonex system;
13: use sipphone system;
14: use ngtel system ;
15: use ayctel system
16: use callserve system
17: use qmaster system