Цитата(stasmar @ 20.4.2010, 11:39) 

Это, именно, описание iPECS
Ищите в программе настройку TRANSFER TONE
она есть 
41 CO Transfer Tone	
но судя по вашему описанию это касается перевода звонка на занятого абоненета
ниже привожу все поля ПМГ160-161
1	Attd Call Queued RBT		
2	Camp-On MOH/Ring-Back Tone		
3	CO Dial Tone Detect		
4	CO Line Choice		
5	DISA Retry Count		
6	External Night Ring		
7	Hold Preference		
8	Print LCR Converted digits		
9	Attendant Call Queuing		
10	USE PGM_0 IN ALL ATD		
11	Offnet Prompt Usage		
12	CO to CO Unsupervised Conference Timer Extend		
13	Discovery Manager Print		
14	CALL LOG Num	(Num)	15 - 50
15	Repeat DTMF tone		
16	Off-Hook Ring Type		
17	Page Warning Tone		
18	Automatic Privacy		
19	Privacy Warning Tone		
20	ACD Print Enable		
21	ACD Print Timer	(*1sec)	001 - 255
22	Clear ACD Database		
23	Override First CO Group		
24	Codec Type		
25	G.711 Packetization	(*1msec)	10/20/30
26	G.723 Packetization	(*1msec)	30/60
27	Network Time/Date		
28	Incoming Toll Check		
29	Web Server Port		00001-65535
30	Web Admin Password Encryption		
31	Auth Retry Count		1 - 9
32	Old Auth Code Usage		
33	COS 7 when Auth Fail		
34	Application Interface Message		
35	Conference Room CO Tel Number		MAX 15 Digits
36	Record warning tone		
37	CPU Redundancy Usage		
38	Change ACT MFIM By Power Fail		
39	MFIM DIFF SERVE		00-63
40	G/W, Phone Upgrade Mode		
41	CO Transfer Tone		
42	Conference Warning Tone		
43	TLS for Web		
44	Dummy Dial Tone		
45	SIP Station Mode		
46	SMS Center Number		MAX 23 Digits
47	SMS Center CLI		MAX 23 Digits
48	SMS Protocol		
49	G.722 Packetization	(*1msec)	10/20/30
51	Transit out security		
52	Emergency Call ATD Notify		
53	3-Way Conference Preference		
54	First Digit * in Speed		
55	SIP Pound Use		
56	VSF/VMIM SMTP Port		00001-65535
57	SMS Domain		
58	CTI IP		
59	Intercom Busy Service		
60	Auto save new message		
61	IGMP Query Usage		
62	IGMP Query Interval Timer	(*1sec)	0000 - 3600
63	IGMP Query All Host		
64	IGMP Query Generic		
65	RING-GROUP INDICATION