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標題: GSM接入台 [打印本頁]

作者: Qnewbie    時間: 2010-6-9 23:41     標題: GSM接入台

本帖最後由 Qnewbie 於 2010-8-10 19:58 編輯

Have someone in the forum bought so called GSM接入台?
http://item.taobao.com/item.htm?id=305022973

It sounds great as access number or callback DID number. It is unclear, though, that the connection between GSM 接入台 and asterisk.
It has only RJ11 port, which should be connected to FXS or FXO port(Linksys ATA?).

角色C-hing, have you more info for this kind of products?
作者: 角色    時間: 2010-6-12 01:49

As far as I know this machine is just a gatway between GSM to PSTN and vise versa.

I know that there is a GSM module for Asterisk such that it gives your more choices of making or receiving calls via Asterisk.

YH
作者: ckleea    時間: 2010-6-12 06:33

Like you add an FXO port. There are other products allowing multiple SIMs
作者: bubblestar    時間: 2010-6-14 11:40

How to add a cellular trunk to your VoIP system - Part 1 (3 pages)

How to add a cellular trunk to your VoIP system - Part 2 (5 pages)

PORTech Illustrated examples for 1 port, 2 ports, 4 ports, 8 ports triband/quad-band models of GSM gateways
作者: Qnewbie    時間: 2010-6-14 18:03

From the cost point of view, the GSM 接入台+SPA3000(180+170CNY) is far cheaper than GSM gateway(720CNY).
作者: 角色    時間: 2010-6-14 21:59

From the voice quality point of view, it is better to choose GSM gateway which is specially for interfacing with an Asterisk server.

YH
作者: alexccs    時間: 2010-6-23 19:14

本帖最後由 alexccs 於 2010-6-23 19:17 編輯

For your reference, taiwan manufacturer "Planet" have got this SIP GSM gateway product:
http://www.planet.com.tw/en/product/product_ov.php?id=4160
you can download the user manual to see if it fit your requirements.

There seems only 1 shop selling their voip product in Golden, called "領宙", and planet's HK distributor is WINCO at KWUN TONG. If "領宙" dun have u can call the distributor directly.
http://www.winco.com.hk/index.asp
作者: 電腦超人    時間: 2010-6-23 19:25

For your reference, taiwan manufacturer &quotlanet" have got this SIP GSM gateway product:

you can dow ...
alexccs 發表於 2010-6-23 19:14

領宙o係黃金同高登都有分店...
但係你所講既呢隻GSP VoIP gateway就好貴下...我印象係千幾定二千幾...

反而Planet既話有隻VoIP Gateway佢地都有做...好似4百幾蚊...
佢地有時會話用呢隻黎代替買SPA3102(因為冇哂貨... )
作者: alexccs    時間: 2010-6-23 22:05

本帖最後由 alexccs 於 2010-6-23 22:10 編輯

所以話For reference, 無其他選擇下.

Linksys 野的話我公司會直接搵代理SIS買(會送貨, 但要連其他野(pc, lcd etc)買夠數先得, 因為係代理), 不過 Linksys 番貨都要等兩至三個禮拜.
作者: 角色    時間: 2010-7-1 15:05

原来这个世界有很多种的VoIP GSM Gateway,大家看看,最后是我们提及的特伯乐的GOIP GSM Gateway:

http://www.voip-info.org/wiki/view/VOIP+GSM+Gateways


角色
作者: Qnewbie    時間: 2010-7-1 15:21

Thanks, Yhfung C-hing.

It is question of trade-off between voice quality and cost. I am just wondering about the voice quality (latency etc.) for GOIP and GSM接入台. Might have to make up my mind this week.
作者: 角色    時間: 2010-7-1 16:56

Based on the user of GOIP GSM gateway and GSM gateway of the user, GOIP GSM is much better and easy to use as compared to GSM gateway.  The use of GSM gateway will depend on your application. If you does not involve any further Asterisk server, GSM gateway is a better choice. However, if your application is involved with Asterisk server, it is not a good choice. The better solution is GOIP GSM gateway. You may ask the member for more information about his comments on the use of his GOIP GSM gateway.

YH
作者: alang    時間: 2010-7-15 22:06

我有設過 GOIP GSM gateway,若有什麼疑問,只要我能協助的請讓我知道。
作者: 角色    時間: 2010-7-15 23:32

刚才也跟member测试GSM box和GOIP GSM Gateway,接入我香港的Asterisk Server(NAS-based)和深圳的Asterisk Server(embedded based)。发现GSM box效果不错,可以接受。而GOIP GSM Gateway就不可以,可能是member那里的GSM信号不是很好,而GSM box的收发能力非常好(因为有增益天线),而GOIP GSM Gateway的天线非常小,可能是这样原因导致测试效果不太好。


角色
作者: Qnewbie    時間: 2010-7-16 04:38

Oh, it is a bit too late since I bought the GOIP gateway. I plan to use it as an access number for both callback and call through. The patch might be a larger atennna

BTW, 情侶卡 & GOIP gateway might be an ecomonic way to access the asterisk core system in mainland(OK, if the gateway keeps its promise).
作者: 角色    時間: 2010-7-16 07:18

I believe that GSM box outperforms GOIP GSM Gateway due to the large gain antenna for poor GSM signal. Since the member has tried to use GOIP Gateway in Hong Kong, the performance is satisfied.

Where do you place the GOIP gateway and what is your application?

YH
作者: Qnewbie    時間: 2010-7-16 22:18

It is used mainly as callback access number with whitelist numbers. Weekend it is used as call through for me.

It is placced with me, neither in mainland nor in HK. The call between mobiles in weekend is "free" if the connection fee is not counted.
作者: 角色    時間: 2010-7-17 06:47

If the GSM signal is good enough, the voice signal should be okay.

YH
作者: 角色    時間: 2010-7-18 21:39

Just carried out a very quick test on GOIP when member brought it to Beijing. The voice quality is excellent but with moderate echoes. Based on this result, it is confirmed that if the GSM signal is okay then the voice quality is also okay.

YH
作者: yiucsw    時間: 2010-8-4 12:31

GSM 平台 和 GOIP (720) 都有。
GSM 平台长时间开是没有问题。可以加天线。FXS /FXO 头 是 (230/280元) 声音清晰。但功能简单,没有SMS CALLBACK. 现在是 GSM+SPA3102+cordless phone. 好用,简单。但现在还没能加IP01 trunk.
简单的Register 是没有问题。
GOIP 加天线是可以,但声音不好。(不知道原因)
请问 如何加上 SIP trunk的功能????
作者: 角色    時間: 2010-8-4 12:53

你GSM接入平台 + SPA3102,那么你就可以做SIP Trunk了。我忘你的GSM接入平台在哪里吗?给我一条link,可以吗?

角色
作者: dreamy2k    時間: 2010-8-4 17:54

我都有一台呀!!角色!!合哈哈哈
作者: dreamy2k    時間: 2010-8-4 17:54

GSM接入平台
作者: 角色    時間: 2010-8-4 17:55

是吗,看来你们设备也不错!不知道是否能有来电显示呢?

角色
作者: dreamy2k    時間: 2010-8-4 18:03

今晚试下先!!我未得閒试
作者: 角色    時間: 2010-8-4 18:05

今晚试下先!!我未得閒试
dreamy2k 發表於 2010-8-4 18:03


你买是FXS输出,还是FXO输出呢?

角色
作者: dreamy2k    時間: 2010-8-4 21:38

我要插SPA3102 FXS口的
作者: 角色    時間: 2010-8-4 22:01

那么你的GSM接入平台就是FXO口吗?

角色
作者: dreamy2k    時間: 2010-8-4 22:19

我部GSM好搞笑只可以接聽吾可以打出!!因為巨只系把打入來的那通電話變成座機而已

MOBILE -> GSM台 -> FXS -> VOIP
作者: dreamy2k    時間: 2010-8-4 22:20

呢台我打算放在大陸!!买張接听吾使錢的SIM卡!!
作者: dreamy2k    時間: 2010-8-4 22:21

甘可以大陸手机 -> GSM台 -> VOIP -> 香港SIP SERVER -> PSTN街外
作者: 角色    時間: 2010-8-4 22:23

是的。有member就是这样用。

角色
作者: dreamy2k    時間: 2010-8-4 23:25

嗯嗯嗯!!甘打返香港平好多!!哈哈哈
作者: yiucsw    時間: 2010-8-4 23:57

et263 是7分钱一分钟。一小时是4.2元。你要50小时才归本。没算移动卡费。要是在家不如et263-et263免费的。
我要GSM平台主要是提供DID服务。
作者: dreamy2k    時間: 2010-8-5 01:03

我系谂住大陆手机->GSM台->SPA3105->OPENVPN->香港SIP SERVER->PSTN街外

只系計我大陆手机打出的費用
作者: 角色    時間: 2010-8-5 08:05

那么多接入平台,你们买过那一家,是否有link可以参考呢?

角色
作者: dreamy2k    時間: 2010-8-5 12:57

http://item.taobao.com/item.htm?id=5917883478
作者: 角色    時間: 2010-8-5 13:18

谢谢你的信息。

角色
作者: yiucsw    時間: 2010-8-6 12:16

想问你的GSM接入平台是连到SPA3102的Phone口?
Delay 严重吗?我现在在香港打澳门的GSM接入平台。Delay像过去的长途电话。同一香港的地方。 ET263好多了。我现在猜是SPA3102的问题,所以想问你的平台接入好不好。
还有停电后,是不是什么的设置都不见了?
作者: alang    時間: 2010-8-6 12:44

我系谂住大陆手机->GSM台->SPA3105->OPENVPN->香港SIP SERVER-&gtSTN街外

只系計我大陆手机打出的費用 ...
dreamy2k 發表於 2010-8-5 01:03

請問你這樣使用下,會不會發生咬線的狀況?通話品質是否會音量過小或有 echo 等問題?在 GSM 訊號穩定狀況下,撥出及撥入 GSM 是否會有 calls loss ?
作者: dreamy2k    時間: 2010-8-6 14:29

alang: 你想要的是可以接fxo口的,那比較平,但買時問清楚系吾系用nokia的接收模塊呀!!用nokia的吾會差

yiucsw: 是接入fxs口!!!只可接听,音質都ok吾會話好差!!!如果停電系吾work的!!!
作者: 角色    時間: 2010-8-6 14:54

回復 34# yiucsw


你的GSM台是从淘宝哪一家买呢?那么大家可以多一个参考。

角色
作者: Qnewbie    時間: 2010-8-6 16:18

Almost all GSM boxes come from the same company. I think it differs not so much from each other.
作者: Qnewbie    時間: 2010-8-7 20:37

Try to set up GOIP for call divert:

Mobile 1 => GOIP(mobile 2) => VSP(ET263) => Mainland

Scenario is user uses Mobile 1 to call GOIP(mobile 2&ET263 registered), after password(or whitelist) verification,  user dials a number like 0755123456 to call phone at China. It seems that this solution is not feasible for second dial. Invention of Asterisk is necessary.
作者: Qnewbie    時間: 2010-8-9 16:59

With support from DBL, the GOIP works as I wanted.

Mobile 1 => GOIP(mobile 2) => VSP(ET263) => Mainland

The support from DBL was great. It changes my view to the service level for mainland manufactures. It might worth to try mainland products next time.
作者: 角色    時間: 2010-8-9 17:02

Have you got the GOIP? How is the performance of it?

YH
作者: Qnewbie    時間: 2010-8-9 17:51

It is a bit hacky due to low signal level(14), otherwise it is acceptable.
作者: 角色    時間: 2010-8-9 17:54

Same result as obtained from another member. If the signal is strong enough, the performance of GOIP is alright. Is there any menas to increase the sentitivity of antenna?

YH
作者: Qnewbie    時間: 2010-8-9 17:56

本帖最後由 Qnewbie 於 2010-8-9 17:58 編輯

I think the antenna is a must.

I did not get the specification of antenna interface, should buy one antenna latter.
作者: yiucsw    時間: 2010-8-11 11:27

GSM 的天线便 可以,要SMA头。从GSM小天线(¥20)到防水平板(¥70)到玻璃天线(¥120)都可以。

我想知道GSM接入平台 到 FXS 的delay 如何? 现在是delay 是 GSM FXO + SPA3102  小于 GOIP。 我猜GSM FXS 更好? 有没有意见?
作者: 角色    時間: 2010-8-13 09:01

按照道理,应该GOIP应该比 GSM FXO + SPA3102快。是否问题存在强于弱的问题呢?因为我知道,GSM FXO好像的接受力比GOIP强,不知道是否是这个原因导致它们之间的分别呢?

角色
作者: Qnewbie    時間: 2010-8-13 16:20

I think one reason for GOIP sensitive to the signal strength is that GOIP's DSP coprocessor is not good for codec task or poor programmed. In the GSM FXO + SPA3102, each one follows its own timing specification and the total delay has good margin.
作者: 角色    時間: 2010-9-10 09:14

我慢慢觉得这个GSM接入平台有一定用途,在大陆你可以买一张月租卡(10元一个月的)只接听,不打,那么你可以告诉你的朋友拨打这个手机号,那么无论你身处其他人都能找到你,特别是你在香港。大陆的朋友拨打大陆的电话号码,你在香港都能接到他们的电话。当然要实行这个的模式,你需要的东西如下:

1)Asterisk server
2)TDM400P Analogue card with FXO port
3)GSM接入平台 FXS输出(就是可以接电话机)


角色
作者: lttliang    時間: 2010-9-10 12:17

整个E9套餐就唔洗买GSM转接平台了吧   我的手机去边都可以联到asterisk   任何来电  也可以转到手机或pstn
作者: 角色    時間: 2010-9-10 13:08

如果member不用中国电信的电话又怎样办呢?

角色
作者: bubblestar    時間: 2010-9-10 15:02

OpenBTS – 打造山寨版GSM系統




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