1- What SoftSwitch does Breezecom use to aggregate voice traffic?
Ans.We use Genband (formerly Nextone) for all of our voice interconnects.
2- Does Breezecom support both SIP and H.323?
Ans. Yes Breezecom interconnect supports both SIP and H.323.
3- What voice codec does Breezecom support?
Ans. Codec support is based on the route that you are getting from Breezecom. Most routes generally do not support G.711 and hence it will be a good idea if you ask our NOC for codec support for specific routes.
4- When can you contact Breezecom for support related issues?
Ans. Breezecom support is available 24*7*365 via MSN(
noc@breezecom.ae), email (
noc@breezecom.biz) or Telephone.
5- What is Answer Seizure Ration (ASR)?
Ans. Average Seizure Ratio measures the percentage of successful calls versus the total calls sent.
6- What is Average Call Duration (ACD)?
Ans. Average Call Duration measures the average length of time a call remains connected.
7- What is Post Dial Delay (PDD)?
Ans. Post Dial Delay measures the amount of time after the user dials a phone number till the time he/she hears a ring-back tone.
8- Is there a specific dialing pattern to make calls through Breezecom’s Network?
Ans. Customer dial pattern to send calls is as below:
Prefix + Country Code + Number
9- What is a prefix?
Ans. This is a technical Prefix which is assigned to customers to send us calls. This means for any destination they must attach this prefix first to enable calls to be successfully sent. This unique prefix assigned to each customer is used for billing purposes as well.
10- I am unable to hear B party, what could be the reason?
Ans. Kindly check codec compatibility or check if Media IPs are allowed on your Media Server Firewall
11- Calls are failing with service unavailable, Cause Code 503. What could be the reason?
Ans. Kindly check if you using correct prefix given to you.
12- Voice is very distorted, or call disconnection issue. What could be the reason?
Ans. If there is no codec mis match issue then kindly check your connectivity to your peer SIP server. Perform a ping and traceroute to your peer server and chech the connectivity
13- My calls are failing with 102 cause code?
Ans. Kindly check if you are using correct protocol which has been mentioned in interconnect form.
14- What are the Default SIP & H.323 ports?
Ans. For SIP Default port is 5060. For H.323, RAS port is 1719 & for Q.931 its 1720
15- What are SIP Methods / Requests and Responses?
Ans.
SIP uses Methods / Requests and corresponding Responses to establish a call session.
SIP Requests:
There are six basic request / method types:
INVITE = Establishes a session
ACK = Confirms an INVITE request
BYE = Ends a session
CANCEL = Cancels establishing of a session
REGISTER = Communicates user location (host name, IP)
OPTIONS = Communicates information about the capabilities of the calling and receiving SIP phones
SIP responses:
SIP Requests are answered with SIP responses, of which there are 6 classes:
1xx = informational responses, such as 180, which means ringing
2xx = success responses
3xx = redirection responses
4xx = request failures
5xx = server errors
6xx = global failures
16-What is a SIP-URI?
Ans.
A SIP URI is the SIP addressing schema to call another person via SIP. In other words, a SIP URI is a user’s SIP phone number. The SIP URI resembles an e-mail address and is written in the following format:
SIP URI = sip:x@y:Port
Where x=Username and y=host (domain or IP)
Examples:
sip:joe.bloggs@212.123.1.213
sip:support@phonesystem.3cx.com
sip:22444032@phonesystem.3cx.com
The SIP URI standard has been defined in the RFC 3261 standard.
17-What does ENUM mean?
Ans. ENUM stands for Telephone Number Mapping. Behind this ‘abbreviation’ hides a great idea: To be reachable anywhere in the world with the same number – and via the best and cheapest route. ENUM takes a phone number and links it to an internet address which is published in the DNS system. The owner of an ENUM number can thus publish where a call should be routed to via a DNS entry. Whats more, different routes can be defined for different types of calls - for example you can define a different route if the caller is a fax machine. ENUM does require the phone of the caller to support it.
18-What is IVR / interactive voice response?
Ans. Interactive Voice Response or IVR is a telephone technology that communicates with a caller through configurable voice menus and data in real time. In an IVR system, callers are given the choice to select options by pressing digits.
19- What should be the codec priorities?
Ans.
1) G.723
2) G.729
3) G.711
20-What is the bandwidth consumption for each codec?
Ans.
G.711 : 64 kbps
G.729 : 8 kbps
G.723 : 6.4 kbps
21-What is the difference between Gateway & Gatekeeper?
Ans.
Gatekeeper: a network device that provides addressing service for H.323, It may also be configured to impose network bandwidth restrictions, but this is not a necessity. Registration by the client usually takes place when the client is started; the address of the gatekeeper is put into the client's configuration.
Gateway: A Gateway is used in a voice service to route calls from one network to another
Ans. AAA commonly stands for “authentication, authorization and accounting”
