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View Full Version : [Tư vấn] Nên mua tổng đài IP hay xây dựng tổng đài IP


minhneo
27-05-2013, 11:27
Chào Vozer,

Hiện cty mình đang cần triển khai tổng đài IP, mình tham khảo thì thấy chi phí bỏ ra mua tổng đài thì nó cũng không chênh lêch bao nhiêu so với mình tự xây dựng tổng đài. Và có một số thắc mắc cần anh em tư vấn:

1. Mua tổng đài vậy phải sử dụng IP phone ? không sử dụng được soft phone ?
2. Mua loại nào tốt và phú hợp ( 50 - 100 nhân viên ).
3. Chi nhánh khoảng 10 nhân viên gọi về main office ( quang 50Mbps ) thì line ADSL 5Mbps ( chi nhánh ) có ổn không .

nc4ever
27-05-2013, 18:54
1. Đa số tổng đài nào cũng hỗ trợ cả IP Phone và Soft phone mà (không hãng phát triển thì Open Source).

2. 50-100 users nhưng phải tính là số cuộc gọi trên giây/phút tối đa như thế nào, cần các chức năng gì (record, group, hỗ trợ CRM,.....)

3. Cái này phụ thuộc vào codec bạn sử dụng nữa cơ.

Mình ko trực tiếp làm tổng đài VoIP nên cũng ko rành lắm, biết gì nói đấy thôi, nhờ các bác khác góp ý.

Mà bác tìm hiểu Asterisk, cài thử lên con server nào đó rồi test dần xem. Soft thì có thể dùng eyebeam hoặc 3cx

philuu
27-05-2013, 19:11
Mình đang học môn này nên có chút kiến thức giúp bạn sơ sơ.
Tổng đài có IP thì có 2 loại:
Phần mềm thì gồm có Asterisk, Trixbox...hoặc có thể bạn tự phát triển riêng cho mình 1 tổng đài cũng được.
Phần cứng: bạn có thể mua các thiết bị tổng đài VoIP ( DrayTek VigorIPPBX 3510 cái này lab trường mình có nên đã làm qua ) hoặc 1 số thiết bị khác.
Và cả 2 dạng phần mềm và phần cứng điều hỗ trợ cả IP phone và Soft phone nhé bạn.

hieubeo2k
21-06-2013, 11:59
Chào Vozer,

Hiện cty mình đang cần triển khai tổng đài IP, mình tham khảo thì thấy chi phí bỏ ra mua tổng đài thì nó cũng không chênh lêch bao nhiêu so với mình tự xây dựng tổng đài. Và có một số thắc mắc cần anh em tư vấn:

1. Mua tổng đài vậy phải sử dụng IP phone ? không sử dụng được soft phone ?
2. Mua loại nào tốt và phú hợp ( 50 - 100 nhân viên ).
3. Chi nhánh khoảng 10 nhân viên gọi về main office ( quang 50Mbps ) thì line ADSL 5Mbps ( chi nhánh ) có ổn không .

Tuy theo nhu cầu cụ thể, chi phi của cty. Bạn có thể lựa chọn. Bạn có thể tham khảo cty này itsc.vn. Có đầy đủ giải pháp và thiet bị mà bên bạn cần

bestki
25-06-2013, 08:41
Chào Vozer,

Hiện cty mình đang cần triển khai tổng đài IP, mình tham khảo thì thấy chi phí bỏ ra mua tổng đài thì nó cũng không chênh lêch bao nhiêu so với mình tự xây dựng tổng đài. Và có một số thắc mắc cần anh em tư vấn:

1. Mua tổng đài vậy phải sử dụng IP phone ? không sử dụng được soft phone ?
2. Mua loại nào tốt và phú hợp ( 50 - 100 nhân viên ).
3. Chi nhánh khoảng 10 nhân viên gọi về main office ( quang 50Mbps ) thì line ADSL 5Mbps ( chi nhánh ) có ổn không .

Hi, bạn lưu ý về chất lượng dịch vụ thực thế khi sử dụng giữa 2 điểm có băng thông khác nhau, thì tốc độ đường truyền chỉ phụ thuộc vào đầu kết nối có băng thông thấp ở đây là điểm Chi nhánh 5Mbps.:canny:

vanmungit@gmail.com
29-06-2013, 12:04
ban nên cần nhắc kỹ nhé, có rất nhiều lựa chọn, bạn có thễ tham khảo cty sữ dụng nhiêu nhất làtập đoàn masan, cty nước tương mình dang dùng đấy, rồi cf trung nguyên...... rất nhiều

ledainam
29-06-2013, 23:55
bạn cho bên mình sdt nhé. bên mình sẽ tư vấn từ a-z luôn.

One - IBM Server
05-07-2013, 11:17
Có gì bạn cho mình contact, mình sẽ tư vấn cho bạn. Bên mình có đội ngũ chuyên gia và kỹ thuật viên rất pro trong lĩnh vực này. Thân.

chivas pro
06-07-2013, 09:28
cái này bạn phải nhờ những công ty làm chuyên nghiệp.
nó rành hơn nhiều so với bạn tự bỏ công ra làm. và cũng khắc phục được các lỗi do làm quen. cái này vọc tính ra tốn kém hơn nhiều và còn bị thất thu nữa đó

unishipping68
08-07-2013, 09:54
toàn là cho số mới chịu tư vấn nhỉ :) , dạo này dân kd nhiều quá

ledainam
10-07-2013, 09:53
toàn là cho số mới chịu tư vấn nhỉ :) , dạo này dân kd nhiều quá

tùy số lượng bàn , chi phí cho cái đó mới tư vấn được.

luna.blue
10-07-2013, 12:01
Chào Vozer,
Hiện cty mình đang cần triển khai tổng đài IP, mình tham khảo thì thấy chi phí bỏ ra mua tổng đài thì nó cũng không chênh lêch bao nhiêu so với mình tự xây dựng tổng đài. Và có một số thắc mắc cần anh em tư vấn:
1. Mua tổng đài vậy phải sử dụng IP phone ? không sử dụng được soft phone ?
2. Mua loại nào tốt và phú hợp ( 50 - 100 nhân viên ).
3. Chi nhánh khoảng 10 nhân viên gọi về main office ( quang 50Mbps ) thì line ADSL 5Mbps ( chi nhánh ) có ổn không .

Hi anh,
Em xin tư vấn như sau:
1. Về tổng đài IP Phone:
_ Dùng tổng đài tự xây dựng trên server:
Ưu điểm: Triển khai dễ dàng, dễ quản lý, tiết kiệm chi phí tối đa
Nhược điểm: Yêu cầu sự ổn định và tính sẵn sàng cao của máy chủ. Người triển khai hoặc quản trị phải có kinh nghiệm xử lý các tình huống.
_ Dùng tổng đài đóng gói sẵn:
Ưu điểm: Cắm là chạy, config đơn giản hơn là tự xây dựng server
Nhược điểm: Khó tùy biến, dập khuôn và đi theo hãng cung cấp.
_ Có thể sử dụng song song IP Phone và Softphone.

2. Loại nào tốt và phù hợp ?
Ở đây anh chưa nói rõ, công ty anh sử dụng đường line điện thoại truyền thống, hay dùng đường quang E1/T1 mới hiện nay. Nên chưa thể tư vấn chính xác được model cụ thể
Với 100 nhân viên thì lưu lượng gọi ra và vào khoảng 15-20 cuộc đồng thời, như vậy ta sẽ sử dụng card 32 kênh hoặc gateway 32 cổng.
Nên em xin tư vấn chung như sau:
_ Dùng tổng đài tự xây dựng trên server:

2.1 Server cứng + Card giao tiếp với bưu điện:
Server: CPU 4 Core, >2,5 Ghz.
Ram: 2x2 Gb
HDD: 80Gb RAID1 Hoặc RAID 5 nếu cty bác có đk :D
Card giao tiếp với bưu điện: Card Digium (Khuyến cáo vì tính ổn định cao)
• Ngoài ra nếu sử dụng giải pháp HA (High availability) thì cần 2 máy chủ phần cứng giống y chang nhau
• Nếu sử dụng ghi âm cuộc gọi sẽ cần HDD lớn hơn

2.1 Server ảo hóa + Gateway
Server : CPU 2 Core, 4 theard, >2,5 Ghz.
Ram: 2x2 Gb, HDD: 40Gb
Gateway: Patton, Digium…

3. Gọi từ chi nhánh về Main Office
Cáp ADSL 5Mbps gọi thoải mái, nhưng anh lưu ý các vấn đề như sau:
• Chi nhánh có ở xa Main Office không, tốc độ ping từ main office tới chi nhánh là bao nhiêu (và ngược lại)
• Triển khai gọi từ xa rất dễ dàng, nhưng để ổn định trong sử dụng yêu cầu đường truyền mạng tốt
• Ở chi nhánh có xây dựng tổng đài để Trunk về tổng đài chính tại Main Office không.
• ….

Em đã từng triển khai hệ thống như anh đang muốn xây dựng.
Ngoài ra còn các tính năng của tổng đài nữa, anh muốn xây dựng thế nào hay chỉ đơn thuần là tổng đài nghe gọi bt thui :go:
Ở HN thì alo nhóe, e tư vấn và hướng dẫn triển khai :D

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luna.blue
11-07-2013, 11:24
Thân chào!

Mình sẽ giải đáp các thắc mắc của bạn như sau:

1. Mua tổng đài vậy phải sử dụng IP phone ? không sử dụng được soft phone ?
- Mua tổng đài hay sử dụng tổng đài tự build không bắt buộc phải sử dụng IP Phone. IP Phone chất lượng âm thanh tốt hơn, cơ động hơn (có thể gắn bất kì vị trí nào trong mạng), giá thành cũng đắt hơn :d, ... Có thể tận dụng lại điện thoại analog cũ để sử dụng với tổng đài IP, điện thoại analog giao tiếp với mạng IP thông qua gateway fxs hoặc ATA (Analog telephony Adaptor) thiết bị này sẽ chuyển tín hiệu analog thành digital và ngược lại.
- Sử dụng được softphone cài trên máy tính, tablet hoặc smart phone (có kết nối mạng nội bộ, wifi, 3G). Nếu sử dụng softphone cài trên máy tính thì cần có tai nghe chuyên dụng, vì micro và speaker của máy tính hút nhiều tạp âm -> rất ồn, soft phone phải luôn luôn mở để nhận cuộc gọi,...

2. Mua loại nào tốt và phú hợp ( 50 - 100 nhân viên ).
- Bên mình cung cấp sản phẩm tổng đài VoIP của Israel, bạn tham khảo tại đây (http://voipmart.vn/ippbx-systems?page=shop.product_details&flypage=flypage.tpl&product_id=335&category_id =15&vmcchk=1). Với khoảng 50 - 100 người dùng thì mua con Xorcom XR2000 là được rồi. Mua model nào thì còn phụ thuộc số lượng line trung kế bưu điện (CO hoặc E1) của bạn? khả năng mở rộng sau này (bao gồm cả mở rộng số lượng người dùng và cả trung kế bưu điện)?
- Theo kinh nghiệm của bản thân khi đã từng làm rất nhiều hệ thống IP-PBX, call center,... mình vẫn thích sử dụng tổng đài tự build hơn; Vì thừa hưởng được cấu hình phần cứng khá good, giá thành mềm hơn rất nhiều (soft switch là open source, bạn có thể dowload bản cài đặt có sẵn trên web),....

3. Chi nhánh khoảng 10 nhân viên gọi về main office ( quang 50Mbps ) thì line ADSL 5Mbps ( chi nhánh ) có ổn không .

- Với đường ADSL 5Mbps đương nhiên có thể đảm bảo được chất lượng cuộc gọi từ chi nhánh về Head Office. Một cuộc gọi theo chuẩn alaw và ulaw (chất lượng tương đương như điện thoại analog thông thường) chiếm 64Kbps + header (của router) <=> 96 - 98Kbps.

* Có vấn đề gì thắc mắc, cần tư vấn giải pháp hoặc chưa rõ, bạn có thể trực tiếp liên hệ với mình (phone hoặc chat) theo thông tin bên dưới!

Pham Van Viet
System Engineer at nttnetworks.com.

Email : viet.pv@nttnetworks.com | YIM : vanvietdth | Skype : vanvietdth | Mobile : (+84) 903 04 22 57

banlegiagoc
11-07-2013, 14:07
:byebye:
mình vote 1 vé . nên mua tổng đài IP nha bác

huylun
17-07-2013, 16:15
Theo e,nếu xài tổng đài IP mềm ( Asterisk) thì phải xài IP phone hoặc thiết bị chuyển đổi.cả 2 cách đều có chi phí khoảng 100$/user/extension .Kèm theo đó là chi phí cho máy tính và server đi kèm để vận hành Asterisk. phần mềm Asterisk gần như miễn phí.
Nếu xài tổng đài IP thì chỉ cần xài analog phone,chi phí khoảng 10$/user/extension.Nhưng chi phí đầu tư tổng đài IP ban đầu khá cao.
Từ bài toán trên,ta có thể thấy nếu xài dưới 20 users hoặc extension hoặc ko cần mở rộng sau về sau thì dùng Asterisk là được. Nếu xài trên 20 users hoặc extension và sau này sẽ mở rộng thêm thì nên xài tổng đài IP cứng.
Trên thị trường có tổng đài panasonic,siemens.. giá khá rẻ khi chưa có IP (220$) nhưng nếu là tổng đài IP thì khá cao ( trên 1.200 $) và NEC giá chưa có IP khá cao ( 300$) nhưng nếu có chức năng IP thì lại tương đối rẻ ( 800$ cho cấu hình IP cơ bản).
Từ đó các bro tham khảo và lựa chọn đúng với yêu cầu cho cty mình nhé.

ducnguyen1504
21-10-2013, 13:58
Hi anh,
Em xin tư vấn như sau:
1. Về tổng đài IP Phone:
_ Dùng tổng đài tự xây dựng trên server:
Ưu điểm: Triển khai dễ dàng, dễ quản lý, tiết kiệm chi phí tối đa
Nhược điểm: Yêu cầu sự ổn định và tính sẵn sàng cao của máy chủ. Người triển khai hoặc quản trị phải có kinh nghiệm xử lý các tình huống.
_ Dùng tổng đài đóng gói sẵn:
Ưu điểm: Cắm là chạy, config đơn giản hơn là tự xây dựng server
Nhược điểm: Khó tùy biến, dập khuôn và đi theo hãng cung cấp.
_ Có thể sử dụng song song IP Phone và Softphone.

2. Loại nào tốt và phù hợp ?
Ở đây anh chưa nói rõ, công ty anh sử dụng đường line điện thoại truyền thống, hay dùng đường quang E1/T1 mới hiện nay. Nên chưa thể tư vấn chính xác được model cụ thể
Với 100 nhân viên thì lưu lượng gọi ra và vào khoảng 15-20 cuộc đồng thời, như vậy ta sẽ sử dụng card 32 kênh hoặc gateway 32 cổng.
Nên em xin tư vấn chung như sau:
_ Dùng tổng đài tự xây dựng trên server:

2.1 Server cứng + Card giao tiếp với bưu điện:
Server: CPU 4 Core, >2,5 Ghz.
Ram: 2x2 Gb
HDD: 80Gb RAID1 Hoặc RAID 5 nếu cty bác có đk :D
Card giao tiếp với bưu điện: Card Digium (Khuyến cáo vì tính ổn định cao)
• Ngoài ra nếu sử dụng giải pháp HA (High availability) thì cần 2 máy chủ phần cứng giống y chang nhau
• Nếu sử dụng ghi âm cuộc gọi sẽ cần HDD lớn hơn

2.1 Server ảo hóa + Gateway
Server : CPU 2 Core, 4 theard, >2,5 Ghz.
Ram: 2x2 Gb, HDD: 40Gb
Gateway: Patton, Digium…

3. Gọi từ chi nhánh về Main Office
Cáp ADSL 5Mbps gọi thoải mái, nhưng anh lưu ý các vấn đề như sau:
• Chi nhánh có ở xa Main Office không, tốc độ ping từ main office tới chi nhánh là bao nhiêu (và ngược lại)
• Triển khai gọi từ xa rất dễ dàng, nhưng để ổn định trong sử dụng yêu cầu đường truyền mạng tốt
• Ở chi nhánh có xây dựng tổng đài để Trunk về tổng đài chính tại Main Office không.
• ….

Em đã từng triển khai hệ thống như anh đang muốn xây dựng.
Ngoài ra còn các tính năng của tổng đài nữa, anh muốn xây dựng thế nào hay chỉ đơn thuần là tổng đài nghe gọi bt thui :go:
Ở HN thì alo nhóe, e tư vấn và hướng dẫn triển khai :D

Chào anh, sorry ko biết tên.

Hiện cty mình cũng đang cần tự triển khai IP phone server, vì thuê ở ngoài vừa phải bỏ tiền mà support thì vẫn còn tệ quá.

Hiện tại mình đang ở HCM không biết anh có thể tư vấn giúp mình được hay không?

Chân thành cảm ơn.